1981 Ford Thunderbird Engine Oil

Your 1981 Ford Thunderbird might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Engine Oil you desperately need.

We currently carry 27 Engine Oil to choose from for your 1981 Ford Thunderbird, and our inventory prices range from as little as $6.49 up to $41.99.

On top of low prices, Advance Auto Parts offers 5 different trusted brands of Engine Oil for the 1981 Ford Thunderbird. We only sell parts from trusted brands like Castrol so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 22,983 reviews on our Engine Oil for the 1981 Ford Thunderbird from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Engine Oil stock in-person!

Engine Oil for Your 1981 Ford Thunderbird

Mobil 1 – Advanced Full Synthetic Engine Oil 5W-30, 5 Quart (Part No.44899)

Advanced Full Synthetic Engine Oil 5W-30, 5 Quart

from

$37.99
Mobil 1 advanced full synthetic motor oil 5W-30 helps to extend engine life for vehicles of all ages. Mobil 1 advanced synthetic motor oil is designed to deliver outstanding engine protection from the five factors that can damage engines over time and protect critical engine parts for up to 10,000 miles between oil changes (1) . Its uniform synthetic oil molecules reduce friction, helping to prevent deposits and sludge buildup. Mobil 1 helps to keep your engine running at lower temperatures. (2) This technologically advanced motor oil is proven to cool engine temperatures by over 10%. (3) Its formulation provides excellent internal engine heat protection (up to 500 degrees Fahrenheit), and low-temperature protection (to -30 degrees Fahrenheit), supporting quick cold-weather starting and ultra-fast protection. Mobil 1 advanced full synthetic motor oil meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy. Mobil 1 advanced full synthetic motor oil 5W-30 also helps control oxidation to prevent oil breakdown and is recommended by ExxonMobil for all types of modern vehicles, including high-performance turbo-charged, and supercharged gasoline and diesel multi-valve fuel-injected engines found in passenger cars, SUVs, light vans, and light trucks. Mobil 1 is America’s leading synthetic motor oil brand at retail, recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR. ( (1) Protects for up to 10,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. (2) Compared to conventional oil. (3) Based on proprietary engine testing results may vary. (4) Source: The NPD Group/Retail Tracking Service/Dollar Sales/PCMO Full Synthetic/52 weeks ending July 1, 2023.)

Product Features:
  • Mobil 1 advanced full-synthetic engine oil 5w-30 utilizes Mobil 1’s signature triple action formula to deliver outstanding engine performance, protection, and cleanliness.
  • Helps protect critical engine parts for up to 10,000 miles between oil changes,(1) controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
  • Meets ilsac gf-6 standards to help provide low-speed pre-ignition (lspi) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
  • Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
  • Provides excellent internal engine heat protection (up to 500 degrees f) and low temperature protection (to -30 degrees f)
  • Manufacturer part number: 124317
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Castrol – EDGE High Mileage 5W-30 Advanced Full Synthetic Engine Oil: 5 Qt (Part No.15906E)

EDGE High Mileage 5W-30 Advanced Full Synthetic Engine Oil: 5 Qt

from

$38.99
Castrol EDGE High Mileage with Fluid TITANIUM Technology is the natural choice for drivers who demand maximum performance from their high mileage cars, which often operate at extreme temperatures. Castrol EDGE High Mileage provides up to 10X better high temperature performance than the latest industry standard to ensure optimal protection and oil flow over the drive cycle. As your car ages, it can lose performance and efficiency and is also more prone to catalytic converter failure. Castrol EDGE High Mileage is liquid engineered with Phosphorous Replacement Technology to reduce harmful phosphorus to protect the catalytic converter and preserve the life of your emission system. Castrol EDGE High Mileage helps your car defy its miles and extend maximum performance.

Product Features:
  • Patented phosphorus replacement technology to help extend the life of your emission system
  • 10x better high temperature performance (as measured in sequence iiih engine test vs. api sp test limit)
  • 6x better wear protection (as measured in latest sequence iva engine test)
  • 1.4x better sludge protection (as measured in sequence vh engine test vs. api sp test limit)
  • Maximum Performance: Castrol EDGE High Mileage with Fluid TITANIUM Technology is designed to provide maximum performance for high mileage cars, even in extreme temperatures.
  • Protects Catalytic Converter: Castrol EDGE High Mileage is liquid engineered with Phosphorous Replacement Technology to reduce harmful phosphorus, protecting the catalytic converter and preserving the life of your emission system.
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Castrol – GTX High Mileage 5W-30 Synthetic Blend Engine Oil: 5 Quart (Part No.15980E)

GTX High Mileage 5W-30 Synthetic Blend Engine Oil: 5 Quart

from

$30.99
Castrol GTX High Mileage motor oil is the leading consumer high-mileage brand. You won’t need to worry about using a high mileage oil or synthetic because this is both. It’s a synthetic blend engine oil that helps extend the life of your engine by protecting against sludge, wear and burn-off and also liquid engineered to protect your emission system. One of the leading causes of ‘check engine’ lights coming on in high mileage cars is actually catalytic converter failure, which can be caused by phosphorous in engine oil. While phosphorous is present in all engine oils for its ability to reduce wear, it is effectively poisonous to catalytic converters. Castrol GTX High Mileage Motor Oil is liquid engineered with Phosphorous Replacement Technology to replace some of the phosphorous with an advanced additive that maintains robust wear protection. When you want to extend the life of your high mileage engine and emission system and find out how many miles you can go on a high-mileage oil, there is no better choice than Castrol GTX High Mileage Motor Oil.

Product Features:
  • Phosphorus replacement technology to help extend the life of the emission system
  • Superior dispersancy that fights sludge build up
  • Exceptional oil burn-off protection exceeding industry standards (based on api and acea volatility specifications)
  • Improved fuel economy (in 5w-20, 5w-30 and 10w-30 grades versus industry specifications)
  • Provides extra protection for older vehicles: Castrol GTX High Mileage Engine Oil is specifically designed to provide extra protection for high mileage engines, helping to extend the life of your vehicle.
  • Synthetic blend composition: This engine oil is a synthetic blend, combining the benefits of both conventional and synthetic oils to provide superior protection against sludge, wear, and burn-off.
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Castrol – EDGE 5W-30 Advanced Full Synthetic Engine Oil: 5 Quart (Part No.1598B1)

EDGE 5W-30 Advanced Full Synthetic Engine Oil: 5 Quart

from

$37.99
Castrol EDGE with Fluid TITANIUM Technology is Castrol’s strongest oil and the natural choice for drivers who want the best combination of sludge protection, wear protection and maximum engine performance. Unlock maximum performance with every drive. Today’s engines are smaller, more powerful and under more pressure than ever before. Castrol EDGE has been engineered to withstand the stress of modern engines and provides 10X better high temperature performance than the latest industry standard. Did you know that friction can waste up to 10% of an engine’s performance? Increased demands placed on the engine to deliver power and fuel efficiency create intense friction between critical engine parts. Castrol EDGE transforms its structure under pressure to keep metal apart and reduce friction for maximum engine performance and delivers 6X better wear protection than required by the latest Sequence IVA test limits.

Product Features:
  • 3x stronger against viscosity breakdown than leading full synthetic (based on kurt orbahn test in 5W-30 grade)
  • 10x better high temperature performance (as measured in sequence iiih engine test vs. api sp test limit)
  • 6x better wear protection
  • 1.4x better sludge protection (as measured in sequence vh engine test vs. api sp test limit)
  • Full Synthetic Oil Composition: Castrol EDGE w/SPT Engine Oil is a full synthetic oil that contains new powerful dispersant molecules, providing superior engine protection and performance.
  • Strongest Oil: Castrol EDGE with Fluid TITANIUM Technology is Castrol’s strongest oil, providing the best combination of sludge protection, wear protection, and maximum engine performance.
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Mobil 1 – 10W-30 High Mileage Full Synthetic Motor Oil, 5 Quart (Part No.14995)

10W-30 High Mileage Full Synthetic Motor Oil, 5 Quart

from

$38.99
Give your higher mileage engine the care it deserves with Mobil 1 High Mileage full-synthetic motor oil 10W-30. This formula utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles with over 75,000 miles. Mobil 1 High Mileage motor oil extends engine life by reducing friction and preventing deposits and sludge buildup, keeping critical engine parts clean and protected for up to 10,000 miles between oil changes. (1) Mobil 1 helps to keep your engine running at lower temperatures (2) and is proven to cool engine temperatures by over 10%. (3) Mobil 1 High Mileage full-synthetic motor oil 10W-30 also helps control oxidation to prevent oil breakdown and is recommended by ExxonMobil for all types of modern cars, SUVs, light vans, and light trucks, including those with high-performance, turbocharged, supercharged, multi-valve, or fuel-injected engines. Mobil 1 is America’s No. 1 selling synthetic motor oil brand at retail, (4) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR®. ( (1) Protects for up to 10,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. (2) Compared to conventional oil. (3) Based on proprietary engine testing¿results may vary. (4) Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ PCMO full-synthetic/ 52 weeks ending Feb 25, 2023)

Product Features:
  • Mobil 1 High Mileage full-synthetic motor oil 10W-30 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.(1)
  • Utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness
  • Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
  • Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
  • Manufacturer Part Number: 120770
  • Extended Engine Life: This motor oil extends engine life by reducing friction and preventing deposits and sludge buildup, keeping critical engine parts clean and protected for up to 10,000 miles between oil changes.
  • Temperature Control: Mobil 1 helps to keep your engine running at lower temperatures and is proven to cool engine temperatures by over 10%, compared to conventional oil.
  • Oxidation Control: The formula helps control oxidation to prevent oil breakdown, ensuring long-lasting performance and protection for modern cars, SUVs, light vans, and light trucks.
  • Trusted Brand: Mobil 1 is America’s No. 1 synthetic motor oil brand at retail, trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR«.
  • Trusted Brand: Mobil 1 is America’s No. 1 synthetic motor oil brand at retail, trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR®.
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Castrol – EDGE 5W-30 Advanced Full Synthetic Motor Oil: 1 Quart (Part No.152C3C)

EDGE 5W-30 Advanced Full Synthetic Motor Oil: 1 Quart

from

$11.99
Castrol EDGE with Fluid TITANIUM Technology is Castrol’s strongest oil and the natural choice for drivers who want the best combination of sludge protection, wear protection and maximum engine performance. Unlock maximum performance with every drive. Today’s engines are smaller, more powerful and under more pressure than ever before. Castrol EDGE has been engineered to withstand the stress of modern engines and provides 10X better high temperature performance than the latest industry standard. Did you know that friction can waste up to 10% of an engine’s performance? Increased demands placed on the engine to deliver power and fuel efficiency create intense friction between critical engine parts. Castrol EDGE transforms its structure under pressure to keep metal apart and reduce friction for maximum engine performance and delivers 6X better wear protection than required by the latest Sequence IVA test limits.

Product Features:
  • 3X Stronger against viscosity breakdown than leading full synthetic (Based on Kurt Orbahn test in 5W-30 grade)
  • 10X Better High Temperature performance (As measured in Sequence IIIH engine test vs. API SP test limit)
  • 6X Better Wear Protection
  • 1.4X Better Sludge Protection (As measured in Sequence VH engine test vs. API SP test limit)
  • Advanced Friction Reduction: Transforms its structure under pressure to keep metal parts apart, reducing friction and unlocking maximum engine performance, which can help prevent up to 10% performance loss due to friction.
  • Engineered for Modern Engines: Specially designed to withstand the stress of today’s smaller, more powerful engines, ensuring optimal performance and protection under increased pressure and demands.
  • Full Synthetic Composition: As a full synthetic motor oil with a 5W-30 SAE oil weight, Castrol EDGE offers superior protection and performance, making it the natural choice for drivers seeking the best for their vehicles.
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Castrol – EDGE High Mileage 5W-30 Full Synthetic Engine Oil 1 Quart (Part No.15979F)

EDGE High Mileage 5W-30 Full Synthetic Engine Oil 1 Quart

from

$12.99
CASTROL EDGE High Mileage 5W-30 Full Synthetic Motor Oil 1 Quart is the perfect choice for vehicles with over 75K miles. It is formulated with Fluid Titanium Technology that provides 10X better high-temperature performance and 6X better wear protection. The oil is designed with Phosphorus Replacement Technology that preserves the catalytic converter and the emission system. It meets API SP/SN PLUS, ILSAC GF-6, GM dexos1 Gen 2, and other OEM specifications. Castrol EDGE High Mileage is a full synthetic motor oil that offers superior performance and protection for high mileage engines. It is available in different grades, including 5W-20, 5W-30, and 10W-30. Try Castrol EDGE High Mileage today and extend the life of your engine.

Product Features:
  • 10x better high temperature performance – as measured in seq iiih engine test vs. api sp limit
  • 6x better wear protection – as measured in seq iva test vs. latest test limit
  • From the makers of the No. 1 high mileage brand
  • Meets api sp/sn plus, ilsac gf-6, gm dexos1 gen 2, meets ford wss-m2c961-a1 and wss-m2c946-b1, meets engine test requirements of chrysler ms 6395 and 13340
  • Castrol edge offers engine oils that meet oem specification approvals or licenses that cover over 97.3% of the us car parc.
  • Available in the following grades: 5w-20, 5w-30, 10w-30, and 10w-40
  • Try castrol edge high mileage today
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Valvoline – Daily Protection 5W-30 Synthetic Blend Motor Oil, Easy Pour 5 Quart (Part No.881159)

Daily Protection 5W-30 Synthetic Blend Motor Oil, Easy Pour 5 Quart

from

$29.99
Valvoline Daily Protection Motor Oil is specially formulated to exceed industry standards for wear, deposit and sludge protection to help keep engines running like new. Developed with high quality additives and premium base oils, it’s designed to flow easily at cold temperatures, reducing wear at startup and providing added protection against motor oil breakdown in tough conditions. For enhanced fuel efficiency, choose Daily Protection Synthetic Blend 5W-20 or 5W-30. Developed with low-friction technology to support strong fuel economy.

Product Features:
  • Extra wear protection designed to help keep automotive engine parts like new
  • Added detergents help protect against sludge and deposits
  • High quality additives resist motor oil breakdown in tough conditions
  • Low-friction formula supports strong fuel efficiency
  • Premium formulation flows easily at low temperatures reducing wear at start-up
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Castrol – GTX Ultraclean 5W-30 Synthetic Blend Motor Oil: 5 Quart (Part No.15A66D)

GTX Ultraclean 5W-30 Synthetic Blend Motor Oil: 5 Quart

from

$29.99
Environmental factors such as poor fuel quality, hot weather and stop-start driving conditions can lead to sludge, varnish and carbon build-up in your engine: three factors that reduce engine life, power and fuel economy. Castrol Ultraclean is a synthetic blend engine oil available in 0W-20, 5W-20 and 5W-30 grades. Its double-action formula has been proven to clean away the sludge that can block engine oilways* and helps prevent new sludge formation thanks to its synthetic technology. In fact, it provides up to 1.4X better sludge protection than is demanded by the latest industry standard. If keeping your engine clean is important to you, it’s good to know that no other oil keeps engines cleaner.

Product Features:
  • 1.4X superior sludge protection compared to tough industry standards (As measured in the Sequence VH Sludge test vs. API SP test limits)
  • Advanced protection against viscosity and thermal breakdown
  • Superior protection against high-temperature deposits
  • Premium-quality base oils and anti-wear additives that help extend the life of your engine
  • Double-Action Formula: The synthetic blend engine oil features a double-action formula that effectively cleans away existing sludge and prevents new sludge formation.
  • Versatile Grade Options: Available in 0W-20, 5W-20, and 5W-30 grades, Castrol Ultraclean offers flexibility to suit various engine requirements.
  • Enhanced Engine Performance: By reducing sludge, varnish, and carbon build-up, this oil helps improve engine life, power, and fuel economy.
  • Synthetic Blend Composition: The GTX Ultraclean 5W-30 Synthetic Blend Motor Oil combines the benefits of synthetic technology with the reliability of a standard oil class.
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Castrol – GTX High Mileage Synthetic Blend 5W-30 Engine Oil: Helps Protect Emission Systems, 1 Quart (Part No.149D6A)

GTX High Mileage Synthetic Blend 5W-30 Engine Oil: Helps Protect Emission Systems, 1 Quart

from

$10.49
Castrol GTX High Mileage motor oil is the leading consumer high-mileage brand. It’s a synthetic blend motor oil that helps extend the life of your engine by protecting against sludge, wear and burn-off. Castrol GTX High Mileage is also engineered to protect your emission system. One of the leading causes of ‘check engine’ lights coming on in high mileage cars is catalytic converter failure, which can be caused by phosphorous in engine oil. While phosphorous is present in all engine oils for its ability to reduce wear, it is effectively poisonous to catalytic converters. Castrol GTX High Mileage is formulated with Phosphorous Replacement Technology to replace some of the phosphorous with an advanced additive that maintains robust wear protection. When you want to extend the life of your high mileage engine and emission system, there is no better choice than Castrol GTX High Mileage.

Product Features:
  • Phosphorus replacement technology to help extend the life of the emission system
  • Superior dispersancy that fights sludge build up
  • Exceptional oil burn-off protection exceeding industry standards (based on api and acea volatility specifications)
  • Seal conditioners to help reduce leaks
  • Advanced additives that minimize engine wear
  • Improved fuel economy (in 5w-20, 5w-30 and 10w-30 grades versus industry specifications)
  • Meets or exceeds api sp/sn plus/sn, ilsac gf-6 and latest ford specs
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Valvoline – Advanced Full Synthetic 5W-30 Engine Oil: Maximizes Engine Life, 1 Quart (Part No.VV955)

Advanced Full Synthetic 5W-30 Engine Oil: Maximizes Engine Life, 1 Quart

from

$11.49
Today’s advanced engine technology requires advanced protection. Valvoline Advanced Full Synthetic, the motor oil designed to protect today’s sophisticated engines, contains premium anti-wear additives, superior antioxidants and extra detergents. It protects 40% better against wear, resists oil breakdown 10-times better, and defends 25% more against deposits than industry standards for maximum performance and engine longevity. And with an exceptional range of temperature protection your engine will ready for extreme weather. Valvoline invented motor oil 150 years ago, and we’ve been reinventing it ever since. Get Valvoline Advanced Full Synthetic and give your engine the advanced protection proven to maximize engine life.

Product Features:
  • Advanced protection against the four main causes of engine breakdown: wear friction heat and deposits
  • 40% better wear protection vs. industry standard as tested in the sequence ivb engine test
  • 25% better deposit protection with superior engine cleaning detergents as tested in the gmod engine test
  • Exceptional high/low temperature protection defends your motor no matter the weather conditions
  • Meets or exceeds all requirements of ilsac gf-6a, api sp, api sn with sn plus, api sn, gm dexos 1 gen 3
  • Superior engine protection: Valvoline SynPower Full Synthetic Engine Oil provides superior protection against engine sludge and varnish, ensuring your engine stays clean and running smoothly.
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Castrol – GTX Ultraclean 5W-30 Synthetic Blend Motor Oil: No Oil Keeps Engines Cleaner, 1 Quart (Part No.15A66C)

GTX Ultraclean 5W-30 Synthetic Blend Motor Oil: No Oil Keeps Engines Cleaner, 1 Quart

from

$9.99
Castrol® Ultraclean synthetic blend engine oil is our cleanest GTX ever. Environmental factors such as poor fuel quality, hot weather and stop-start driving conditions can lead to the buildup of sludge that can reduce engine life, power and fuel economy. Castrol Ultraclean has a double-action formula proven to clean away the sludge that can block engine oilways and helps prevent new sludge formation from occurring. In fact, it provides up to 1.4X better sludge protection than is demanded by the latest industry standard (as measured in the Sequence VH Sludge test vs. API SP test limits). No other oil keeps engines cleaner.

Product Features:
  • Premium-quality base oils and anti-wear additives that help extend the life of your engine
  • 1.4X superior sludge protection compared to tough industry standards, as measured in the Sequence VH Sludge test vs. API SP test limits
  • Advanced protection against viscosity and thermal breakdown
  • Superior protection against high-temperature deposits
  • Meets or exceeds API SP/SN PLUS/SN, ILSAC GF-6 and latest Ford specs
  • Double-Action Formula: Castrol Ultraclean’s unique double-action formula effectively cleans away existing sludge and prevents new sludge formation, ensuring optimal engine performance.
  • Enhanced Engine Life and Performance: Designed to combat environmental factors like poor fuel quality, hot weather, and stop-start driving conditions, which can reduce engine life, power, and fuel economy.
  • Synthetic Blend Composition: Combines the benefits of synthetic and conventional oils, offering superior protection and performance in a 5W-30 SAE oil weight.
  • Cleanest GTX Ever: Marketed as Castrol’s cleanest GTX oil, ensuring that no other oil keeps engines cleaner, making it an ideal choice for maintaining engine cleanliness and efficiency.
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Mobil 1 – Extended Performance 10W-30 Full Synthetic Motor Oil, 1 Quart (Part No.14978)

Extended Performance 10W-30 Full Synthetic Motor Oil, 1 Quart

from

$12.99
If you trust your vehicle to be there for you, you need to be there for its engine, with Mobil 1 Extended Performance full-synthetic motor oil 10W-30. Our ultimate full-synthetic motor oil meets or exceeds the industry’s toughest standards to help you get the most from your engine for up to 20,000 miles between oil changes, guaranteed.(1) Mobil 1 Extended Performance utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of maximized engine power. This cutting-edge formula is recommended by ExxonMobil for all types of modern vehicles, including high-performance, turbo-charged, and supercharged gasoline and diesel multi-valve fuel-injected engines found in passenger cars, SUVs, light vans, and light trucks. Mobil 1 is America’s No. 1 synthetic motor oil brand at retail,(2) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR®. ((1)Protects for up to 20,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. (2)Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ PCMO full-synthetic/ 52 weeks ending Feb 25, 2023)

Product Features:
  • Mobil 1 High Mileage full-synthetic motor oil 10W-30 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.(1)
  • Utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of power
  • Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
  • Helps extend engine life by working to prevent damaging deposits and sludge buildup
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)
  • Manufacturer Part Number: 102990
  • Extended Engine Protection: Mobil 1 Extended Performance full-synthetic motor oil 10W-30 protects your engine for up to 20,000 miles or 1 year, ensuring long-lasting performance and reliability.
  • Versatile Compatibility: Recommended for all types of modern vehicles, including high-performance, turbo-charged, and supercharged gasoline and diesel multi-valve fuel-injected engines in passenger cars, SUVs, light vans, and light trucks.
  • Industry-Leading Standards: Meets or exceeds the industry’s toughest standards, making it a trusted choice for car builders, experienced mechanics, and as the Official Motor Oil of NASCAR«.
  • Industry-Leading Standards: Meets or exceeds the industry’s toughest standards, making it a trusted choice for car builders, experienced mechanics, and as the Official Motor Oil of NASCAR®.
  • America’s No. 1 Synthetic Motor Oil Brand: Mobil 1 is the top synthetic motor oil brand at retail, trusted by consumers and professionals alike for its superior quality and performance.
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Valvoline – Full Synthetic High Mileage with MaxLife Technology 5W-30 Engine Oil: Maximizes Engine Life, 5 Quart (Part No.813531)

Full Synthetic High Mileage with MaxLife Technology 5W-30 Engine Oil: Maximizes Engine Life, 5 Quart

from

$37.99
Upgrading your motor oil to Valvoline Full Synthetic High Mileage with MaxLife Technology can help you increase the longevity of your car, truck or SUV with over 75,000 miles. It’s proven to protect your high-mileage motor against wear, friction, heat, and deposits – the leading causes of engine breakdown and expensive repairs. Our exclusive formulation goes beyond industry standards to protect your engine. It’s fortified with enhanced wear additives and friction-fighting agents to safeguard critical engine components, extra detergents to clean inside your engine, and premium seal conditioners to restore aging seals and prevent leaks. Superior viscosity modifiers and high-quality base oils help it perform exceptionally in both high and low temperatures. Engineered with ingenuity, tested with tenacity, and proven with purpose, our formula was innovated in America with a century and a half of hands-on experience from the original motor oil brand.

Product Features:
  • Enhanced maxlife technology prevents engine breakdown in extreme conditions with 50% better wear protection than the industry standard
  • Treat and prevent leaks with premium seal conditioners to keep oil out of places it shouldn’t be
  • 25% extra defense against deposits, sludge, corrosion and rust via interior-cleansing detergents
  • Extreme temperature protection through our high-quality base oils and superior viscosity modifiers
  • Meets or exceeds all requirements of ilsac gf-6a, api sp, api sn with sn plus, api sn
  • High Mileage Oil Class: Valvoline MaxLife Synthetic Engine Oil is specially designed for engines with over 75,000 miles, providing superior protection against wear, friction, heat, and deposits – the leading causes of engine breakdown and expensive repair
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Quaker State – 10W-30 Conventional Motor Oil, Reduces Engine Wear and Sludge, 5 Quart (Part No.550044962)

10W-30 Conventional Motor Oil, Reduces Engine Wear and Sludge, 5 Quart

from

$27.99
Quaker State 10W-30 conventional motor oil helps engines survive daily commutes from high-speed highway operation to repetitive, stop-and-go driving. It maintains the required viscosity from start to finish, providing optimal protection. Quaker State Motor Oil combats engine sludge and deposits, providing rust protection from harmful acids generated by engine contaminants. It reduces engine wear, providing durable wear protection. Quaker State 10W-30 Motor Oil meets or exceeds the following OEM requirements: Chrysler MS-6395; GM 6094M. It exceeds the requirements of the following industry specifications: API SP and all previous categories; ILSAC GF-6a and all previous ILSAC standards. For a full list of equipment approvals and recommendations, please consult your local Quaker State Technical Help Desk and always consult your owner’s manual.

Product Features:
  • Conventional 10W-30 that provides durable wear protection and reduces engine wear
  • Provides corrosion protection against harmful acids generated by engine contaminants
  • Maintains viscosity from start to finish, providing optimal oil film protection
  • Helps engines survive daily commutes from high-speed highway operation to repetitive, stop-and-go driving
  • Combats engine sludge and deposits
  • Formulated to exceed industry specifications: ILSAC GF-6A, API SP/SP-Resource Conserving and all previous categories
  • Meets OEM requirements: GM 6094M, Chrysler MS-6395
  • Formerly known as Quaker State Advanced Durability 10W-30 motor oil
  • Rust Protection: Provides rust protection from harmful acids generated by engine contaminants, safeguarding your engine’s internal components.
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Quaker State – Full Synthetic 10W-30 Motor Oil 5 Quart (Part No.550046201)

Full Synthetic 10W-30 Motor Oil 5 Quart

from

$35.99
Quaker State Full Synthetic 10W-30 motor oil delivers strong engine performance and protection against deposits between oil changes. It’s designed to protect today’s sophisticated engines, including modern turbocharged engines. Quaker State Full Synthetic motor oil is the best of the Quaker State portfolio. It can be used in both new and older vehicles, especially high performance vehicles such as sports cars, SUVs, trucks, and minivans. Additionally, Quaker State Full Synthetic 10W-30 is compatible with biofuels ranging from E10 to E85 and is suitable for hybrid engines. It provides high resistance to oxidation, keeping the oil fresher for longer, and it reduces friction to maximize horsepower in your vehicle (compared to Quaker State conventional and synthetic blend motor oils). It exceeds the requirements of the following industry specifications: API SP-Resource Conserving and all previous categories; ILSAC GF-6a and all previous ILSAC Standards. Quaker State Full Synthetic 10W-30 motor oil meets the specifications for: Chrysler MS-6395; GM 6094M. For a full list of equipment approvals and recommendations, please consult your local Quaker State Technical Help Desk and always consult your owner’s manual.

Product Features:
  • Full synthetic 10W-30 motor oil provides strong engine performance and protection against deposits between oil changes
  • Provides improved fuel economy (based on the latest industry standard)
  • Designed to provide more performance with superior lubrication flow and pumpability at high and low temperatures (compared to Quaker State conventional and synthetic blend motor oils).
  • Formulated with high resistance to oxidation, keeping the oil fresher for longer.
  • Reduces friction to maximize horsepower (compared to Quaker State conventional and synthetic blend motor oils)
  • Maintains required viscosity from start to finish, providing optimal protection
  • Suitable for all car, SUV, light van, truck gasoline and turbocharged engines; under all driving conditions.
  • Compatible with biofuels ranging from E10 to E85 and suitable for hybrid vehicles.
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FRAM – Full Synthetic 5W-30 Dexos1 Gen 3 Engine Oil: 5 Quart (Part No.F930-5QT)

Full Synthetic 5W-30 Dexos1 Gen 3 Engine Oil: 5 Quart

from

$27.99
FRAM Engine Oil Full Synthetic SAE 5W-30 is a full synthetic motor oil blended with high quality synthetic base stocks and the latest additive technology to meet the stringent API: SP, SN, SM, SL, SJ, GM dexos1 Gen 3 and ILSAC GF-6A specifications to provide the ultimate protection for your engine. Specifically formulated for the rigorous environment of gas-direct engine (GDI) and turbo gas-direct engine (TGDI) designs as well as providing increased protection for carbureted or normally fuel injected engines. FRAM Engine Oil Full Synthetic SAE 5W-30 contains additive technology designed to prevent low-speed pre-ignition (LSPI). LSPI can lead to pre-mature engine failure and is a major concern of the automotive industry for vehicles employing GDI or TGDI technology. This oil also provides increased wear protection, oxidation and shear stability over previous oil categories. FRAM Engine Oil Full Synthetic SAE 5W-30 and is a fully licensed GM dexos1 Gen 3 motor oil.

Product Features:
  • Faster oil flow at start-up
  • Fuel efficiency gains over heavier grade oils
  • Excellent sludge and varnish protection
  • Outstanding thermal and oxidation stability
  • Lowers oil vaporization and consumption at extreme conditions
  • Always refer to your vehicles operating manual to select the correct grade oil for your engine.
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FRAM – 5 Qt Conventional 5W30 Engine Oil with Low-Speed Pre-Ignition Control (Part No.F620-5QT)

5 Qt Conventional 5W30 Engine Oil with Low-Speed Pre-Ignition Control

from

$25.99
FRAM Engine Oil SAE 5W-30 utilizes a blend of high-quality conventional and synthetic base stocks coupled with a robust additive system to provide reliable engine protection across a broad range of operating conditions. Specifically formulated for use in modern gas-direct engines (GDI) and turbo gas-direct engines (TGDI) as well as older carbureted or normally fuel injected gasoline engine designs. FRAM Engine Oil SAE 5W-30 contains additive technology designed to prevent low-speed pre-ignition (LSPI) while also providing increased wear protection, oxidation and shear stability over previous oil categories. FRAM Engine Oil SAE 5W-30 meets the requirements for API SP, SN Plus, SN, SM and ILSAC GF-6A, GF-5 and earlier API and ILSAC Service Categories.

Product Features:
  • Low-speed pre-ignition control
  • Chain wear protection
  • Piston cleanliness
  • Turbo-compatibility
  • Always refer to your vehicles operating manual to select the correct grade oil for your engine.
  • Reliable engine protection: FRAM Conventional Oil 5W30 5 QT utilizes a blend of high-quality conventional and synthetic base stocks coupled with a robust additive system to provide reliable engine protection across a broad range of operating conditions.
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FRAM – Full Synthetic High Mileage 5W-30 Engine Oil: 5 Quart (Part No.F933-5QT)

Full Synthetic High Mileage 5W-30 Engine Oil: 5 Quart

from

$28.99
FRAM Full Synthetic High Mileage SAE 5W-30 is a full synthetic motor oil blended with high quality synthetic base stocks and and enhanced additives that meet the stringent API: SP, SN, SM, SL, SJ, and ILSAC GF-6A specifications while reducing leaks and oil consumption in worn or higher mileage engines. Formulated with synthetic base stocks, this oil offers increased oxidation inhibition performance as well as increased high and low temperature performance when compared against conventional oils. The FRAM Full Synthetic High Mileage SAE 5W-30 is formulated to help clean out sludge buildup and keep engines running clean and with increased efficiency and power. Specially designed for engines with over 75,000 miles, the FRAM Full Synthetic High Mileage SAE 5W-30 provides the ultimate protection for your higher mileage engine. Specifically formulated for the rigorous environment of gas-direct engine (GDI) and turbo gas-direct engine (TGDI) designs as well as providing increased protection for carbureted or normally fuel injected engines. FRAM Full Synthetic High Mileage SAE 5W-30 contains additive technology designed to prevent low-speed pre-ignition (LSPI). LSPI can lead to pre-mature engine failure and is a major concern of the automotive industry for vehicles employing GDI or TGDI technology. This oil also provides increased wear protection, oxidation and shear stability for higher mileage vehicles over previous oil categories.

Product Features:
  • Faster oil flow at start-up
  • Fuel efficiency gains over heavier grade oils
  • Reduces oil cumsumption
  • Excellent sludge and varnish protection
  • Slows engine leaks
  • Outstanding thermal and oxidation stability
  • Lowers oil vaporization and consumption at extreme conditions
  • Always refer to your vehicles operating manual to select the correct grade oil for your engine.
See More

FRAM – 5 Qt Engine Oil High Milage Conventional 5W30 Restores Seals to Reduce Oil Consumption (Part No.F660-5QT)

5 Qt Engine Oil High Milage Conventional 5W30 Restores Seals to Reduce Oil Consumption

from

$25.99
FRAM Conventional High Mileage 5W30 Engine Oil is specially designed with enhanced  additives to help reduce leaks and oil consumption in worn or higher mileage engines. This oil is formulated to help clean out sludge buildup and keep engines running clean and with  increased efficiency and power. They are specially designed for engines with over 75,000 miles.  FRAM Conventional High Mileage 5W30 Engine Oil will protect domestic and imported vehicles and  equipment powered with either gasoline or light duty diesel engines – even those that are turbo charged or super-charged. This high-quality oil is specifically formulated to meet or exceed  all new car manufacturers’ warranty requirements as well as the stringent industry standards API  SP/CF, and 5W30 grades will also meet or exceed the ILSAC GF-6A Resource Conserving Service Category.

Product Features:
  • Formulated with a unique combination of premium base oils and an enhanced additive system
  • Provides increased protection in higher mileage engines
  • Helps restore seal condition to reduce oil consumption
  • Increases protection against high temperature deposits and ring sticking
  • Always refer to your vehicles operating manual to select the correct grade oil for your engine.
  • Specially formulated for engines with over 75,000 miles to help reduce leaks and oil consumption.
See More

FRAM – Full Synthetic 5W-30 dexos 1 Gen 3 Motor Oil: 1 Quart (Part No.F930)

Full Synthetic 5W-30 dexos 1 Gen 3 Motor Oil: 1 Quart

from

$7.49
FRAM Engine Oil Full Synthetic SAE 5W-30 is a full synthetic motor oil blended with high quality synthetic base stocks and the latest additive technology to meet the stringent API: SP, SN, SM, SL, SJ, GM dexos®1 Gen 3 and ILSAC GF-6A specifications to provide the ultimate protection for your engine. Specifically formulated for the rigorous environment of gas-direct engine (GDI) and turbo gas-direct engine (TGDI) designs as well as providing increased protection for carbureted or normally fuel injected engines. FRAM Engine Oil Full Synthetic SAE 5W-30 contains additive technology designed to prevent low-speed pre-ignition (LSPI). LSPI can lead to pre-mature engine failure and is a major concern of the automotive industry for vehicles employing GDI or TGDI technology. This oil also provides increased wear protection, oxidation and shear stability over previous oil categories. FRAM Engine Oil Full Synthetic SAE 5W-30 and is a fully licensed GM dexos®1 Gen 3 motor oil.

Product Features:
  • Faster oil flow at start-up
  • Fuel efficiency gains over heavier grade oils
  • Excellent sludge and varnish protection
  • Outstanding thermal and oxidation stability
  • Lowers oil vaporization and consumption at extreme conditions
  • ALWAYS REFER TO YOUR VEHICLES OPERATING MANUAL TO SELECT THE CORRECT GRADE OIL FOR YOUR ENGINE.
  • Ultimate Engine Protection: FRAM Engine Oil Full Synthetic SAE 5W-30 meets stringent API: SP, SN, SM, SL, SJ, GM dexos«1 Gen 3, and ILSAC GF-6A specifications, ensuring top-tier protection for your engine.
  • Advanced Additive Technology: Specifically formulated to prevent low-speed pre-ignition (LSPI), a major concern for vehicles with gas-direct engine (GDI) and turbo gas-direct engine (TGDI) designs, reducing the risk of premature engine failure.
  • Enhanced Wear Protection: Provides increased wear protection, oxidation, and shear stability over previous oil categories, extending the life of your engine.
  • Versatile Compatibility: Suitable for use in carbureted, normally fuel-injected engines, and the rigorous environment of GDI and TGDI engines, offering broad application versatility.
  • Fully Licensed GM dexos«1 Gen 3: This oil is a fully licensed GM dexos«1 Gen 3 motor oil, ensuring it meets the high standards set by General Motors for optimal engine performance.
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FRAM – Conventional 5W30 Engine Oil with Low-Speed Pre-Ignition Control – 1 Qt (Part No.F620)

Conventional 5W30 Engine Oil with Low-Speed Pre-Ignition Control - 1 Qt

from

$6.49
FRAM Engine Oil SAE 5W-30 utilizes a blend of high-quality conventional and synthetic base stocks coupled with a robust additive system to provide reliable engine protection across a broad range of operating conditions. Specifically formulated for use in modern gas-direct engines (GDI) and turbo gas-direct engines (TGDI) as well as older carbureted or normally fuel injected gasoline engine designs. FRAM Engine Oil SAE 5W-30 contains additive technology designed to prevent low-speed pre-ignition (LSPI) while also providing increased wear protection, oxidation and shear stability over previous oil categories. FRAM Engine Oil SAE 5W-30 meets the requirements for API SP, SN Plus, SN, SM and ILSAC GF-6A, GF-5 and earlier API and ILSAC Service Categories.

Product Features:
  • Low-speed pre-ignition control
  • Chain wear protection
  • Piston cleanliness
  • Turbo-compatibility
  • Always refer to your vehicles operating manual to select the correct grade oil for your engine.
  • Reliable engine protection: FRAM Conventional Oil 5W30 1 QT utilizes a blend of high-quality conventional and synthetic base stocks coupled with a robust additive system to provide reliable engine protection across a broad range of operating conditions.
See More

FRAM – High Milage Conventional 5W30 Engine Oil – Helps Restore Seal Condition – 1 Qt (Part No.F660)

High Milage Conventional 5W30 Engine Oil - Helps Restore Seal Condition - 1 Qt

from

$6.49
FRAM Conventional High Mileage 5W30 Engine Oil is specially designed with enhanced  additives to help reduce leaks and oil consumption in worn or higher mileage engines. This oil is formulated to help clean out sludge buildup and keep engines running clean and with  increased efficiency and power. They are specially designed for engines with over 75,000 miles.  FRAM Conventional High Mileage 5W30 Engine Oil will protect domestic and imported vehicles and  equipment powered with either gasoline or light duty diesel engines – even those that are turbo charged or super-charged. This high-quality oil is specifically formulated to meet or exceed  all new car manufacturers’ warranty requirements as well as the stringent industry standards API  SP/CF, and 5W30 grade will also meet or exceed the ILSAC GF-6A Resource Conserving Service Category.

Product Features:
  • Formulated with a unique combination of premium base oils and an enhanced additive system
  • Provides increased protection in higher mileage engines
  • Helps restore seal condition to reduce oil consumption
  • Increases protection against high temperature deposits and ring sticking
  • Always refer to your vehicles operating manual to select the correct grade oil for your engine.
  • Specially formulated for engines with over 75,000 miles to help reduce leaks and oil consumption.
See More

FRAM – Full Synthetic High Mileage 5W-30 Motor Oil: 1 Quart (Part No.F933)

Full Synthetic High Mileage 5W-30 Motor Oil: 1 Quart

from

$7.99
FRAM Full Synthetic High Mileage SAE 5W-30 is a full synthetic motor oil blended with high quality synthetic base stocks and and enhanced additives that meet the stringent API: SP, SN, SM, SL, SJ, and ILSAC GF-6A specifications while reducing leaks and oil consumption in worn or higher mileage engines. Formulated with synthetic base stocks, this oil offers increased oxidation inhibition performance as well as increased high and low temperature performance when compared against conventional oils. The FRAM Full Synthetic High Mileage SAE 5W-30 is formulated to help clean out sludge buildup and keep engines running clean and with increased efficiency and power. Specially designed for engines with over 75,000 miles, the FRAM Full Synthetic High Mileage SAE 5W-30 provides the ultimate protection for your higher mileage engine. Specifically formulated for the rigorous environment of gas-direct engine (GDI) and turbo gas-direct engine (TGDI) designs as well as providing increased protection for carbureted or normally fuel injected engines. FRAM Full Synthetic High Mileage SAE 5W-30 contains additive technology designed to prevent low-speed pre-ignition (LSPI). LSPI can lead to pre-mature engine failure and is a major concern of the automotive industry for vehicles employing GDI or TGDI technology. This oil also provides increased wear protection, oxidation and shear stability for higher mileage vehicles over previous oil categories.

Product Features:
  • Faster oil flow at start-up
  • Fuel efficiency gains over heavier grade oils
  • Reduces oil cumsumption
  • Excellent sludge and varnish protection
  • Slows engine leaks
  • Outstanding thermal and oxidation stability
  • Lowers oil vaporization and consumption at extreme conditions
  • ALWAYS REFER TO YOUR VEHICLES OPERATING MANUAL TO SELECT THE CORRECT GRADE OIL FOR YOUR ENGINE.
  • Engine Cleaning and Efficiency: Helps clean out sludge buildup, keeping engines running clean with increased efficiency and power, ideal for engines with over 75,000 miles.
  • Advanced LSPI Prevention: Contains additive technology designed to prevent low-speed pre-ignition (LSPI), a major concern for vehicles with gas-direct injection (GDI) and turbo gas-direct injection (TGDI) engines.
  • Comprehensive Engine Protection: Provides increased wear protection, oxidation, and shear stability for higher mileage vehicles, meeting stringent API: SP, SN, SM, SL, SJ, and ILSAC GF-6A specifications.
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Castrol – EDGE Extended Performance 5W-30 Advanced Full Synthetic Motor Oil: 5 Qt (Part No.1597B1)

EDGE Extended Performance 5W-30 Advanced Full Synthetic Motor Oil: 5 Qt

from

$41.99
Castrol EDGE Extended Performance with Fluid TITANIUM Technology, is Castrol’s most advanced full synthetic and the natural choice for drivers who demand outstanding performance and the assurance of protection during today’s longer drain intervals. It provides protection for 20,000 miles or a full year – guaranteed. Castrol EDGE Extended Performance features some of the best attributes of Castrol’s patented Fluid TITANIUM Technology that transforms its structure to be stronger under pressure. It helps keep metal apart to fight power-robbing friction, providing wear protection 6X better than required by the industry standard, while protecting under extreme conditions with 10X better high temperature performance. Castrol EDGE Extended Performance provides the strength to extend drains for 20,000 miles and the muscle to maintain viscosity stability under the extreme force of the engine and protection from wear.  Unlock maximum engine performance.

Product Features:
  • Extended drain interval of 20,000 miles or a full year (Whichever comes first)
  • 10X Better High Temperature performance (As measured in Sequence IIIH engine test vs. API SP test limit)
  • 6X Better Wear Protection (As measured in the latest Sequence IVA engine test)
  • 1.4X Better Sludge Protection (As measured in Sequence VH engine test vs. API SP test limit)
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Castrol – EDGE Extended Performance Full Synthetic 5W30 Motor Oil 1 Quart (Part No.15D47E)

EDGE Extended Performance Full Synthetic 5W30 Motor Oil 1 Quart

from

$13.49
Castrol® EDGE® Extended Performance is Castrol’s most advanced full synthetic motor oil. It provides ultimate performance and the strength to enable an extended drain of 20,000 miles or a full year (whichever comes first).

Product Features:
  • Approved and Licensed Specifications include: API SP/SN PLUS, ILSAC GF-6, GM dexos1 Gen 2, ACEA A5/B5, ACEA C2, Ford WSS-M2C961-A1, Meets engine test performance of Chrysler MS-6395 and MS-13340
  • 10X Better High Temperature Performance (Seq IIIH test vs. API SP limit)
  • 6X Better Wear Protection (Based on Seq IVA vs. latest test limit)
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Quaker State – Full Synthetic 10W-30 Motor Oil 1 Quart (Part No.550046199)

Full Synthetic 10W-30 Motor Oil 1 Quart

from

$8.49
Quaker State Full Synthetic 10W-30 motor oil delivers strong engine performance and protection against deposits between oil changes. It’s designed to protect today’s sophisticated engines, including modern turbocharged engines. Quaker State Full Synthetic motor oil is the best of the Quaker State portfolio. It can be used in both new and older vehicles, especially high performance vehicles such as sports cars, SUVs, trucks, and minivans. Additionally, Quaker State Full Synthetic 10W-30 is compatible with biofuels ranging from E10 to E85 and is suitable for hybrid engines. It provides high resistance to oxidation, keeping the oil fresher for longer, and it reduces friction to maximize horsepower in your vehicle (compared to Quaker State conventional and synthetic blend motor oils). It exceeds the requirements of the following industry specifications: API SP-Resource Conserving and all previous categories; ILSAC GF-6a and all previous ILSAC Standards. Quaker State Full Synthetic 10W-30 motor oil meets the specifications for: Chrysler MS-6395; GM 6094M. For a full list of equipment approvals and recommendations, please consult your local Quaker State Technical Help Desk and always consult your owner’s manual.

Product Features:
  • Full synthetic 10W-30 motor oil provides strong engine performance and protection against deposits between oil changes
  • Provides improved fuel economy (based on the latest industry standard)
  • Designed to provide more performance with superior lubrication flow and pumpability at high and low temperatures (compared to Quaker State conventional and synthetic blend motor oils).
  • Formulated with high resistance to oxidation, keeping the oil fresher for longer.
  • Reduces friction to maximize horsepower (compared to Quaker State conventional and synthetic blend motor oils)
  • Maintains required viscosity from start to finish, providing optimal protection
  • Suitable for all car, SUV, light van, truck gasoline and turbocharged engines; under all driving conditions.
  • Compatible with biofuels ranging from E10 to E85 and suitable for hybrid vehicles.
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FAQs for 1981 Ford Thunderbird Engine Oil

What are the most popular Engine Oil for the 1981 Ford Thunderbird?

With 5 brands you can trust, our most popular Engine Oil for the 1981 Ford Thunderbird parts are:
Full Synthetic 5W-30 Dexos1 Gen 3 Engine Oil: 5 Quart
from $27.99
This product is not rated
Full Synthetic 5W-30 Dexos1 Gen 3 Engine Oil: 5 Quart
Engine Oil

What are the best aftermarket Engine Oil for the 1981 Ford Thunderbird?

See what past customers had to say about our highest-rated Engine Oil for the 1981 Ford Thunderbird:
10W-30 Conventional Motor Oil, Reduces Engine Wear and Sludge, 5 Quart
from $27.99
(478)
10W-30 Conventional Motor Oil, Reduces Engine Wear and Sludge, 5 Quart
“This is by far a great product for any automobile.”
Full Synthetic 10W-30 Motor Oil 5 Quart
from $35.99
(456)
Full Synthetic 10W-30 Motor Oil 5 Quart
“I love Quaker state oil. The best product in oil The best price ever You can find it everywhere”