Name: GTX 10W-30 Conventional Motor Oil, Helps Extend Engine Life, 5 Quart
Brand: Castrol
SKU: 15B7AA
Price: 29.99 USD
Rating: 5.0 (220 reviews)

Essential Oil and Lubricants for 1966 Chevrolet El Caminos

from

$29.99

Castrol® GTX® 10W-30 is a premium conventional motor oil that has been helping to extend engine life for over 50 years. It is specially engineered to prevent harmful build-up of sludge while protecting against new oil splatter formation better than tough industry standards. Sludge is a thick, tar like substance caused by severe driving conditions such as heavy traffic, poor fuel quality, harsh driving conditions and exceeding oil change intervals. Sludge can block your engine’s vital oilways like cholesterol and if untreated, can rob an engine of its power and ultimately its life.

Product Features:

Advanced protection against viscosity and thermal breakdown
Superior protection against engine sludge
Premium quality base oils and anti-wear additives to help extend the life of your engine
Helps minimize oil consumption
Meets or exceeds the following specifications:
API SP/SN PLUS/SN/SM
ILSAC GF-6

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$57.99

3 Qt. Penzoil 80W90 conventional gear Oil. W/ bottle of Posi additive.

Product Features:

Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive

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$11.99

Castrol EDGE High Mileage 5W-20 is an advanced full synthetic motor oil that is specifically designed for vehicles with over 75,000 miles. It’s been engineered to reduce leaks, burnoff and power robbing deposits, but also contains a proprietary additive to protect the emission system. Our Phosphorus Replacement Technology reduces harmful phosphorus to protect the catalytic converter and extend maximum performance. It is the natural choice for drivers who demand maximum performance from their high mileage car.

Product Features:

Product Features:

Phosphorus Replacement Technology to help extend the life of the emission system
Reduces leaks, oil burnoff and power robbing deposits
15,000 miles between oil changes (1)
(1) Or one year, whichever comes first
Meets or exceeds the following specifications:
API SP/SN PLUS/SN/SM
ILSAC GF-6
Meets engine test requirements of Chrysler MS 6395
Meets Ford WSS-M2C945-B1
Meets Ford WSS-M2C960-A1

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$30.99

Castrol® GTX® High Mileage 10W-30 Synthetic Blend Motor Oil is the ultimate choice for extending the life of high-mileage engines. Designed with advanced Phosphorus Replacement Technology, it safeguards your vehicle’s emission system while meeting or exceeding API SP and ILSAC GF-6 standards. This premium synthetic blend offers superior dispersancy to combat sludge buildup, exceptional oil burn-off protection that surpasses industry benchmarks, and advanced additives to minimize engine wear. Its seal conditioners help reduce leaks, ensuring optimal engine performance over time. Engineered for improved fuel economy in 10W-30 grades, this motor oil is perfect for drivers seeking reliability and efficiency. With a 5-quart capacity, it delivers outstanding value and peace of mind for your high-mileage vehicle.

Product Features:

Product Features:

Phosphorus Replacement Technology helps extend emission system life
Superior dispersancy that fights sludge build up
Exceptional oil burn-off protection exceeding industry standards (1)
Seal conditioners to help reduce leaks
Advanced additives that minimize engine wear
Improved fuel economy (2)
(1) Based on API and ACEA volatility specifications
(2) In 5W-20, 5W-30 and 10W-30 grades versus industry specifications
Meets or exceeds the following specifications:
API SP/SN PLUS/SN/SM
ILSAC GF-6

from

$37.99

Castrol EDGE 5W-20 Full Synthetic Motor Oil is engineered for drivers seeking top-tier engine performance and protection. This advanced formula delivers 3X stronger viscosity breakdown resistance compared to leading full synthetics, ensuring durability under extreme conditions. With 10X better high-stress performance and the ability to last up to 20,000 miles or one year between oil changes, it offers exceptional value and convenience. Designed to excel in 7 critical areas, including fuel economy, high-temperature performance, sludge control, and wear protection, it meets or exceeds stringent industry standards such as API SQ/SP/SN PLUS/SN and ILSAC GF-7. Additionally, it fulfills the engine test requirements of Chrysler MS 6395 and Ford WSS-M2C945-B1/WSS-M2C960-A1, making it a reliable choice for a wide range of vehicles. With its 5W-20 SAE weight and full synthetic composition, this oil ensures optimal viscosity control and thermal stability, maximizing engine efficiency and longevity.

Product Features:

Product Features:

3X Stronger than the leading full synthetic (1)
10X Better high stress performance (2)
20,000 miles between oil changes (3)
(1) Viscosity breakdown as measured in Kurt Orbahn test on 5W-30 grade
(2) As measured in Seq IX test under high load/torque conditions vs. API SQ test limits
(3) Or one year, whichever comes first
Approved and Licensed Specifications:
Exceeds API SQ/SP/SN PLUS/SN
ILSAC GF-7
Meets engine test requirements of Chrysler MS 6395
Meets Ford WSS-M2C945-B1
Meets Ford WSS-M2C960-A1

from

$11.99

Castrol EDGE 5W-20 is an advanced full synthetic motor oil and the optimal choice for drivers who want the best combination of wear protection, viscosity control and thermal stability to maximize engine performance. It is one of Castrol’s strongest engine oils with the strength to maintain this unsurpassed level of engine protection for up to 20,000 miles between oil changes or one year.

Product Features:

Product Features:

3X Stronger than the leading full synthetic (1)
10X Better high stress performance (2)
20,000 miles between oil changes (3)
(1) Viscosity breakdown as measured in Kurt Orbahn test on 5W-30 grade
(2) As measured in Seq IX test under high load/torque conditions vs. API SP test limits
(3) Or one year, whichever comes first
Approved and Licensed Specifications:
ILSAC GF-6
Exceeds API SP/SN PLUS/SN/SM
Meets engine test requirements of Chrysler MS 6395
Meets Ford WSS-M2C945-B1
Meets Ford WSS-M2C960-A1

from

$37.99

Product Features:

Phosphorus Replacement Technology to help extend the life of the emission system
Reduces leaks, oil burnoff and power robbing deposits
15,000 miles between oil changes (1)
(1) Or one year, whichever comes first
Meets or exceeds the following specifications:
API SP/SN PLUS/SN/SM
ILSAC GF-6
Meets Ford WSS-M2C947-B1
Meets engine test requirements of Chrysler MS 6395
Meets Ford WSS-M2C960-A1

from

$9.49

Advanced protection against viscosity and thermal breakdown
Superior protection against engine sludge
Premium quality base oils and anti-wear additives to help extend the life of your engine
Helps minimize oil consumption
Meets or exceeds the following specifications:
API SP/SN PLUS/SN/SM
ILSAC GF-6

from

$37.99

Pennzoil Platinum Full Synthetic 10W-30 is designed to maximize engine protection and is backed by a 15,000-mile protection guarantee to protect your pursuit of every mile. Made with natural gas, it is formulated for complete protection for top engine performance. Pennzoil Platinum offers cleaner pistons (based on Sequence IIIH results), helps protect engines from loss of power, delivers better fuel economy (based on the latest industry standard), provides unsurpassed wear protection (based on Sequence IVA wear test using SAE 5W-30), and provides excellent performance in extreme temperatures. (Pennzoil Platinum Lubrication Limited Warranty: Protection for up to 15,000 miles or one year, whichever comes first. Use an oil filter designed for longer oil change intervals and follow OEM manual and vehicles oil life sensor to maintain OEM warranty. Excludes severe driving conditions, including racing and commercial use. Your engine must have fewer than 125,000 miles and have been manufactured in the past 72 months. Enrollment required. Other conditions apply. See pennzoil.com/warranty to enroll and for full details and terms.)

Product Features:

Full synthetic 10W-30 motor oil that is made with natural gas and designed to maximize engine protection
Backed by a 15,000-mile protection guarantee to protect your pursuit of every mile
Provides better fuel economy (based on the latest industry standards)
Keeps pistons cleaner than required by the toughest industry standard (based on Sequence IIIH results)
Designed for high-performance engines
Formulated to provide faster low-temperature oil flow and protection in extreme heat
Helps protect engines from loss of power
Meets or exceeds the requirements of the following industry specifications: API SP, API SP-Resource Conserving, and all previous categories; ILSAC GF-6A
Meets or exceeds the following OEM requirements: Chrysler MS-6395
For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owner’s manual

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$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«.
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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$44.99

3 Qt. Penzoil 80W90 conventional gear Oil.

Product Features:

Includes three quarts of conventional oil

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$11.99

Give your higher mileage engine the care it deserves with Mobil 1 High Mileage full-synthetic motor oil 0W-20. 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: 103535
Extended Engine Life: This 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.
Temperature Control: Proven to cool engine temperatures by over 10%, Mobil 1 helps to keep your engine running at lower temperatures compared to conventional oil.
Oxidation Control: Mobil 1 High Mileage full-synthetic motor oil helps control oxidation to prevent oil breakdown, ensuring long-lasting performance and protection.
Versatile Compatibility: 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.

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$17.99

Help keep positraction chatter down with posi additive from Yukon Gear & Axle.

Product Features:

positraction additive
For use in any clutch-style limited slip

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$12.49

Valvoline High Performance Gear Oil is an extreme pressure gear lubricant formulated with quality base oils and superior additives that helps protect against severe temperatures, shock loads, scuffing, scouring, corrosion and pitting in high speed, high load, high torque and high horsepower conditions.

Product Features:

Formulated for reliable gear protection
Protects against severe temperatures to help extend service life
Formulated with extreme-pressure additives to minimize gear wear from shock loads
Helps protect against gear wear from scuffing, scouring, corrosion and pitting
Recommended for conventional hypoid differentials and non-synchronized manual transmissions in passenger cars, light trucks, sport utility vehicles, vans and heavy-duty trucks where an API-GL5 or GL-4 fluid is specified
PLEASE NOTE: Valvoline recommends SynPower Full Synthetic Gear Oil for limited slip differentials

FAQs for 1966 Chevrolet El Camino Oil and Lubricants

Which Oil and Lubricants are best-sellers for 1966 Chevrolet El Caminos?

Out of 4 Oil and Lubricants that fit 1966 Chevrolet El Caminos, the following parts are the top sellers:

3 Qt – 80W90 Conventional Gear Oil With Posi Additive (11645418) – $57.99
3 Qt – Penzoil 80W90 Conventional Gear Oil (11644279) – $44.99
Friction Modifier / Posi Additive (11644594) – $17.99

What’s the price range for 1966 Chevrolet El Camino Oil and Lubricants?

Oil and Lubricant prices for the 1966 Chevrolet El Camino start at $12.49 and go up to $57.99 for the most premium parts.

What’s the average price of a Oil and Lubricant for a 1966 Chevrolet El Camino?

The average price for Oil and Lubricants for the 1966 Chevrolet El Camino is $33.37. Keep in mind the variety of part types within our Oil and Lubricant category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Oil and Lubricants for other Chevrolet El Camino model years?

Yes, we currently carry Oil and Lubricants for 24 model years of Chevrolet El Caminos between 1959 and 1987. Oil and Lubricants are bought most frequently for the following model years: 1987, 1986, 1985, 1984, 1983, 1982, 1981, 1980, and 1979.

What are the cheapest Oil and Lubricants for my 1966 Chevrolet El Camino?

The cheapest 1966 Chevrolet El Camino Oil and Lubricants we carry in stock are:

High Performance Transmission & Differential Gear Oil: Conventional 80W-90, 1 Quart (7070003) – $12.49
Friction Modifier / Posi Additive (11644594) – $17.99
3 Qt – Penzoil 80W90 Conventional Gear Oil (11644279) – $44.99
3 Qt – 80W90 Conventional Gear Oil With Posi Additive (11645418) – $57.99

What are the top-rated Oil and Lubricants that fit the 1966 Chevrolet El Camino?

Out of 1,175 reviews by customers, our 1966 Chevrolet El Camino Oil and Lubricants have an average customer rating of . These are some of the highest-rated Oil and Lubricant types for the 1966 Chevrolet El Camino and their top-rated products:

Greases
- High Performance Transmission & Differential Gear Oil: Conventional 80W-90, 1 Quart (7070003) – $12.49

What types of Oil and Lubricants do you sell for my 1966 Chevrolet El Camino?

As of 11/2/25, these are some of the most in-demand types of Oil and Lubricants for a 1966 Chevrolet El Camino:

Lubricants
- Gear Oil
Greases
- Gear Oil

Can I get help with 1966 Chevrolet El Camino Oil and Lubricant orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Chevrolet Oil and Lubricants and more.

What is your return policy for Chevrolet El Camino Oil and Lubricants?

Advance Auto Parts keeps returns simple. For new Chevrolet El Camino Oil and Lubricants and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1966 Chevrolet El Camino Oil and Lubricants

Castrol – GTX 10W-30 Conventional Motor Oil, Helps Extend Engine Life, 5 Quart (Part No.15B7AA)

Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil With Posi Additive (Part No.15003)

Castrol – Edge High Mileage 5W-20 Full Synthetic Motor Oil, Reduces Leaks & Deposits, 1 Quart (Part No.15979D)

Castrol – GTX 10W-30 Synthetic Blend Motor Oil, Protects Against Sludge, 5 Quart (Part No.1597B0)

Castrol – Edge 5W-20 Full Synthetic Motor Oil, Superior Wear Protection, 5 Quarts (Part No.15B9AD)

Castrol – Edge 5W-20 Full Synthetic Motor Oil, 3X Stronger Protection, 1 Quart (Part No.152C82)

Castrol – Edge High Mileage 5W-20 Full Synthetic Motor Oil, Reduces Leaks & Deposits, 5 Quart (Part No.15906D)

Castrol – GTX 10W-30 Conventional Motor Oil, Helps Extend Engine Life, 1 Quart (Part No.15B400)

Pennzoil – Platinum 10W-30 Full Synthetic Motor Oil, Maximizes Engine Protection, 5 Quart (Part No.550046205)

Mobil 1 – Extended Performance 10W-30 Full Synthetic Motor Oil, Protects Up to 20,000 Miles (Part No.14978)

Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

Mobil 1 – High Mileage 10W-30 Full Synthetic Motor Oil, Extends Engine Life, 1 Quart (Part No.14992)

Yukon Gear – Friction Modifier / Posi Additive (Part No.15018)

Valvoline – High Performance Transmission & Differential Gear Oil: Conventional 80W-90, 1 Quart (Part No.VV831)

Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil With Posi Additive (Part No.15003)

Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

Yukon Gear – Friction Modifier / Posi Additive (Part No.15018)

Valvoline – High Performance Transmission & Differential Gear Oil: Conventional 80W-90, 1 Quart (Part No.VV831)