2005 Mazda RX-8 Engine Oil

Your 2005 Mazda RX-8 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 20 Engine Oil to choose from for your 2005 Mazda RX-8, and our inventory prices range from as little as $6.29 up to $65.99.

On top of low prices, Advance Auto Parts offers 6 different trusted brands of Engine Oil for the 2005 Mazda RX-8. We only sell parts from trusted brands like Fram 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 5,842 reviews on our Engine Oil for the 2005 Mazda RX-8 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 2005 Mazda RX-8

Valvoline – Advanced Full Synthetic 5W-20 Engine Oil: Maximizes Engine Life, 5 Quart (Part No.881147)

Advanced Full Synthetic 5W-20 Engine Oil: Maximizes Engine Life, 5 Quart

from

$36.99
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
  • Advanced engine protection: Valvoline Advanced Full Synthetic Engine Oil is designed to provide advanced protection to today’s sophisticated engines, ensuring maximum performance and engine longevity.
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Valvoline – Full Synthetic High Mileage with MaxLife Technology 5W-20 Engine Oil: Maximizes Engine Life, 1 Quart (Part No.849644)

Full Synthetic High Mileage with MaxLife Technology 5W-20 Engine Oil: Maximizes Engine Life, 1 Quart

from

$11.99
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, making it the perfect choice for high mileage vehicles.
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Valvoline – Daily Protection 5W-20 Synthetic Blend Motor Oil, Easy Pour 5 Quart (Part No.881158)

Daily Protection 5W-20 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-20 Synthetic Blend Motor Oil: 5 Quart (Part No.15A69C)

GTX Ultraclean 5W-20 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 Grades: Available in 0W-20, 5W-20, and 5W-30 grades, Castrol Ultraclean caters to various engine requirements and driving conditions.
  • 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-20 Synthetic Blend Motor Oil combines the benefits of synthetic technology with the reliability of a standard oil class.
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Valvoline – High Mileage with MaxLife Technology Synthetic Blend 5W-20 Engine Oil: Maximize Engine Life, 1 Quart (Part No.609506)

High Mileage with MaxLife Technology Synthetic Blend 5W-20 Engine Oil: Maximize Engine Life, 1 Quart

from

$9.99
75,000 miles is more than a mile marker. It’s a signal that your engine is ready for greater protection. That’s when you need Valvoline High Mileage with MaxLife Technology Motor Oil. Its exclusive formula is proven to maximize engine life in cars, trucks, and SUVs with over 75,000 miles. Our mixture is specially developed with a unique combination of synthetic and premium conventional oils to protect your high-mileage motor against wear, friction, heat, and deposits – the four major causes of engine breakdown and expensive repairs. Anti-wear additives defend critical engine components, advanced friction-fighting agents reduce heat and abrasion, added detergents clean the inside of your engine, and premium seal conditioners handle aging seals to prevent leaks. It fights sludge, corrosion and rust that can rob your engine of horsepower, fuel efficiency and longevity. From extreme temperatures and cold starts to stop-and-go traffic and frequent short trips, viscosity modifiers make sure the oil flows more easily, coats more completely, and resists thermal breakdown under even the most intense driving conditions. Its unique mixture curbs contaminants to keep high-mileage engines from burning and consuming oil that can foul spark plugs, creating higher emissions and causing your motor to run roughly.

Product Features:
  • Maxlife technology prevents engine breakdown with 40% better wear protection than the industry standard
  • Refresh aging seals and prevent leaks with seal conditioners
  • Reduce sludge, deposits, corrosion, and rust with added detergents – keep motors clean inside
  • Enhanced friction performance helps maximize power with advanced friction-fighting agents
  • Meets or exceeds all requirements of ilsac gf-6a, api sp, api sn with sn plus, api sn
  • Synthetic Blend: Our unique combination of synthetic and premium conventional oils provides superior protection against wear, friction, heat, and deposits.
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Valvoline – Advanced Full Synthetic 5W-20 Motor Oil: Maximizes Engine Life, 1 Quart (Part No.VV927)

Advanced Full Synthetic 5W-20 Motor 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
  • Enhanced Oil Stability: Resists oil breakdown 10 times better than industry standards, providing consistent performance and reliability.
  • Premium Additives: Contains premium anti-wear additives, superior antioxidants, and extra detergents for maximum performance and engine longevity.
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Castrol – 1 Qt Full Synthetic 5W-20 Engine Oil – 3X Stronger Against Viscosity Breakdown (Part No.15B743)

1 Qt Full Synthetic 5W-20 Engine Oil - 3X Stronger Against Viscosity Breakdown

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
  • Unsurpassed thermal breakdown protection: GTX Engine Oil, 5W-20 provides superior protection against thermal breakdown, ensuring that your engine stays protected even under extreme temperatures.
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Quaker State – 5W-20 Synthetic Blend Motor Oil, Reduces Engine Wear, 1 Quart (Part No.550035082)

5W-20 Synthetic Blend Motor Oil, Reduces Engine Wear, 1 Quart

from

$6.29
Quaker State 5W-20 motor oil is a synthetic blend formulation that 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 5W-20 Motor Oil meets or exceeds the following OEM requirements: Chrysler MS-6395; Ford WSS M2C945-A, Ford WSS M2C945-B1; 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:
  • Synthetic blend 5W-20 engine oil 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: Chrysler MS-6395, Ford WSS M2C945-A, Ford WSS M2C945-B1, GM 6094M
  • Formerly known as Quaker State Advanced Durability 5W-20 motor oil
  • Synthetic Blend Formulation: Quaker State 5W-20 motor oil is a synthetic blend that helps engines endure daily commutes, from high-speed highway driving to repetitive stop-and-go traffic.
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Pennzoil – 5W20 Synthetic Blend Motor Oil, 1 Quart (Part No.550022779)

5W20 Synthetic Blend Motor Oil, 1 Quart

from

$8.99
Pennzoil motor oil, America’s most trusted motor oil, is an advanced proprietary conventional formula with active cleansing agents that is engineered to help clean up sludge in your engine. It provides a balance between reducing frictional losses and protection against harmful engine wear by getting between moving parts to prevent them from touching. It exceeds the stringent engine protection standards required by ILSAC GF-5 API SN and is specially formulated to provide protection against the harmful effects of stop-and-go driving, and low-speed pre-ignition (LSPI) in modern turbocharged engines.

Product Features:
  • Contains an active cleansing technology to help clean out sludge lesser motor oils leave behind
  • No leading conventional oil provides better wear protection by preventing metal-on-metal contact
  • Helps protect against the effects of low speed pre-ignition (LSPI) in modern turbocharged engines
  • Contains a proprietary formulation that is designed to reduce friction between moving engine parts
  • Specifications, Approvals and Recommendations: FCA MS-6395 and Ford WSS-M2C945-B1
  • Exceeds the requirements of the following industry specifications: API SN PLUS, API SN-RC and all previous categories; ILSAC GF-5
  • 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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Quaker State – 5 Qt Synthetic Blend 5W-20 Engine Oil – Helps Engines Survive Daily Commutes (Part No.550044965)

5 Qt Synthetic Blend 5W-20 Engine Oil - Helps Engines Survive Daily Commutes

from

$27.99
Quaker State 5W-20 motor oil is a synthetic blend formulation that 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 5W-20 Motor Oil meets or exceeds the following OEM requirements: Chrysler MS-6395; Ford WSS M2C945-A, Ford WSS M2C945-B1; 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:
  • Synthetic blend 5w-20 engine oil 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: chrysler ms-6395, ford wss m2c945-a, ford wss m2c945-b1, gm 6094m
  • Formerly known as quaker state advanced durability 5w-20 engine oil
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Valvoline – High Mileage with MaxLife Technology Synthetic Blend 5W-20 Engine Oil: Maximize Engine Life, 5 Quart (Part No.782253)

High Mileage with MaxLife Technology Synthetic Blend 5W-20 Engine Oil: Maximize Engine Life, 5 Quart

from

$31.99
75,000 miles is more than a mile marker. It’s a signal that your engine is ready for greater protection. That’s when you need Valvoline High Mileage with MaxLife Technology Motor Oil. Its exclusive formula is proven to maximize engine life in cars, trucks, and SUVs with over 75,000 miles. Our mixture is specially developed with a unique combination of synthetic and premium conventional oils to protect your high-mileage motor against wear, friction, heat, and deposits – the four major causes of engine breakdown and expensive repairs. Anti-wear additives defend critical engine components, advanced friction-fighting agents reduce heat and abrasion, added detergents clean the inside of your engine, and premium seal conditioners handle aging seals to prevent leaks. It fights sludge, corrosion and rust that can rob your engine of horsepower, fuel efficiency and longevity. From extreme temperatures and cold starts to stop-and-go traffic and frequent short trips, viscosity modifiers make sure the oil flows more easily, coats more completely, and resists thermal breakdown under even the most intense driving conditions. Its unique mixture curbs contaminants to keep high-mileage engines from burning and consuming oil that can foul spark plugs, creating higher emissions and causing your motor to run roughly.

Product Features:
  • Maxlife technology prevents engine breakdown with 40% better wear protection than the industry standard
  • Refresh aging seals and prevent leaks with seal conditioners
  • Reduce sludge, deposits, corrosion, and rust with added detergents – keep motors clean inside
  • Enhanced friction performance helps maximize power with advanced friction-fighting agents
  • Meets or exceeds all requirements of ilsac gf-6a, api sp, api sn with sn plus, api sn
  • MaxLife Technology: The exclusive formula of Valvoline High Mileage with MaxLife Technology Engine Oil is proven to maximize engine life in cars, trucks, and SUVs with over 75,000 miles.
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FRAM – 5W-20 Full Synthetic Motor Oil, Faster Oil Flow, 5 Quart (Part No.F920-5QT)

5W-20 Full Synthetic Motor Oil, Faster Oil Flow, 5 Quart

from

$27.99
FRAM Engine Oil Full Synthetic SAE 5W-20 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 2 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-20 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-20 and is a fully licensed GM dexos®1 Gen 2 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-20 meets stringent API: SP, SN, SM, SL, SJ, GM dexos«1 Gen 2, 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 pre-mature 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 a variety of engine types, including GDI, TGDI, carbureted, and normally fuel-injected engines, making it a versatile choice for many vehicles.
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FRAM – 5W-20 High Mileage Conventional Motor Oil, Helps Reduce Leaks, 5 Quart (Part No.F662-5QT)

5W-20 High Mileage Conventional Motor Oil, Helps Reduce Leaks, 5 Quart

from

$25.99
FRAM Conventional High Mileage 5W20 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 5W20 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 5W20 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.
  • Sludge Cleanup and Engine Efficiency: Formulated to help clean out sludge buildup, keeping engines running clean with increased efficiency and power.
  • Versatile Compatibility: Protects domestic and imported vehicles and equipment powered by gasoline or light-duty diesel engines, including turbocharged and supercharged engines.
  • Meets Stringent Standards: Meets or exceeds all new car manufacturers’ warranty requirements and stringent industry standards API SP/CF, and ILSAC GF-6A Resource Conserving Service Category.
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FRAM – Full Synthetic High Mileage 5W-20 Motor Oil: 5 Quart (Part No.F923-5QT)

Full Synthetic High Mileage 5W-20 Motor Oil: 5 Quart

from

$28.99
FRAM Full Synthetic High Mileage SAE 5W-20 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-20 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-20 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-20 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.
  • Ultimate Protection for High Mileage Engines: Designed for engines with over 75,000 miles, this oil provides the ultimate protection, making it ideal for higher mileage vehicles.
  • Advanced LSPI Prevention Technology: Contains additive technology to prevent low-speed pre-ignition (LSPI), a major concern for vehicles with gas-direct injection (GDI) and turbo gas-direct injection (TGDI) engines, helping to prevent premature engine fai
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FRAM – 5 Qt Conventional 5W20 Engine Oil with Low-Speed Pre-Ignition Control (Part No.F610-5QT)

5 Qt Conventional 5W20 Engine Oil with Low-Speed Pre-Ignition Control

from

$25.99
FRAM Engine Oil SAE 5W-20 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-20 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-20 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 5W20 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 – 5W-20 Full Synthetic Motor Oil, Extends Full Synthetic Motor Life, 1 Quart (Part No.F920)

5W-20 Full Synthetic Motor Oil, Extends Full Synthetic Motor Life, 1 Quart

from

$7.49
FRAM Engine Oil Full Synthetic SAE 5W-20 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 2 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-20 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-20 and is a fully licensed GM dexos®1 Gen 2 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-20 meets stringent API: SP, SN, SM, SL, SJ, GM dexos«1 Gen 2, 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 GDI and TGDI engines, thereby reducing the risk of pre-mature engine failure.
  • Versatile Compatibility: Suitable for gas-direct engine (GDI), turbo gas-direct engine (TGDI), carbureted, and normally fuel-injected engines, making it a versatile choice for various engine types.
  • Fully Licensed GM dexos«1 Gen 2: This oil is fully licensed as GM dexos«1 Gen 2 motor oil, ensuring it meets the high standards required by General Motors for optimal engine performance.
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FRAM – Conventional 5W20 Engine Oil, with Low-Speed Pre-Ignition Control 1 Quart (Part No.F610)

Conventional 5W20 Engine Oil, with Low-Speed Pre-Ignition Control 1 Quart

from

$6.49
FRAM Engine Oil SAE 5W-20 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-20 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-20 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 5W20 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 – 5W20 High Milage Conventional Motor Oil, Helps Restore Seal Condition, 1 Quart (Part No.F662)

5W20 High Milage Conventional Motor Oil, Helps Restore Seal Condition, 1 Quart

from

$6.49
FRAM Conventional High Mileage 5W20 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 5W20 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 5W20 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 high mileage engines: FRAM High Mileage 5W20 1 QT is designed with enhanced additives to help reduce leaks and oil consumption in worn or higher mileage engines, making it an ideal choice for vehicles with over 75,000 miles.
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Royal Purple – HMX 5W-20 High Mileage Synthetic Motor Oil, 5 Quart (Part No.17518)

HMX 5W-20 High Mileage Synthetic Motor Oil, 5 Quart

from

$65.99
Royal Purple HMX SAE 5W-20 High-Mileage Synthetic Motor Oil, 5 quart is specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles. Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple’s proprietary additive technology Synerlec, HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines. In addition, HMX is fortified with stout detergents to remove engine build-up and deposits, maintain cleanliness and promote engine longevity.

Product Features:
  • Specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles
  • Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple’s proprietary additive technology
  • HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines
  • Reduces friction and metal-to-metal contact for peak engine performance
  • Also provides outstanding oxidation resistance to safely extend oil drain intervals, and an ionic attraction to metal surfaces, providing protection and minimizing wear at start-up
  • Superior Engine Cleanliness: Fortified with stout detergents, this oil effectively removes engine build-up and deposits, maintaining cleanliness and promoting engine longevity.
  • High-Mileage Protection: Classified as a high-mileage oil, it provides specialized protection for older engines, ensuring they run smoothly and efficiently.
  • Synthetic Composition: With a synthetic oil composition and an SAE weight of 5W-20, it offers excellent performance and protection in a wide range of temperatures.
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FRAM – Full Synthetic High Mileage 5W-20 Motor Oil: 1 Quart (Part No.F923)

Full Synthetic High Mileage 5W-20 Motor Oil: 1 Quart

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$7.99
FRAM Full Synthetic High Mileage SAE 5W-20 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-20 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-20 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-20 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.
  • Protection for Advanced Engine Designs: Specifically designed for gas-direct engine (GDI) and turbo gas-direct engine (TGDI) designs, providing increased protection and preventing low-speed pre-ignition (LSPI) which can lead to premature engine failure.
  • Increased Wear Protection and Stability: Provides increased wear protection, oxidation, and shear stability for higher mileage vehicles, ensuring long-lasting engine performance and reliability.
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FAQs for 2005 Mazda RX-8 Engine Oil

What are the most popular Engine Oil for the 2005 Mazda RX-8?

With 6 brands you can trust, our most popular Engine Oil for the 2005 Mazda RX-8 parts are:
5W-20 Full Synthetic Motor Oil, Faster Oil Flow, 5 Quart
from $27.99
This product is not rated
5W-20 Full Synthetic Motor Oil, Faster Oil Flow, 5 Quart
Engine Oil
5W-20 High Mileage Conventional Motor Oil, Helps Reduce Leaks, 5 Quart
from $25.99
This product is not rated
5W-20 High Mileage Conventional Motor Oil, Helps Reduce Leaks, 5 Quart
Engine Oil
Full Synthetic High Mileage 5W-20 Motor Oil: 5 Quart
from $28.99
This product is not rated
Full Synthetic High Mileage 5W-20 Motor Oil: 5 Quart
Engine Oil

What are the best aftermarket Engine Oil for the 2005 Mazda RX-8?

See what past customers had to say about our highest-rated Engine Oil for the 2005 Mazda RX-8:
5W20 Synthetic Blend Motor Oil, 1 Quart
from $8.99
(2242)
5W20 Synthetic Blend Motor Oil, 1 Quart
“Very good oil and good product!”
5W-20 Synthetic Blend Motor Oil, Reduces Engine Wear, 1 Quart
from $6.29
(478)
5W-20 Synthetic Blend Motor Oil, Reduces Engine Wear, 1 Quart
“Fast delivery. Thank you.”
5 Qt Synthetic Blend 5W-20 Engine Oil - Helps Engines Survive Daily Commutes
from $27.99
(478)
5 Qt Synthetic Blend 5W-20 Engine Oil – Helps Engines Survive Daily Commutes
“It’s oil. Lubes my internals.”