1985 Subaru RX Motor Oil

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Keep Your 1985 Subaru RX in Top Shape with Quality Motor Oil

Whether you’re repairing or upgrading your Motor Oil, using high-quality parts is key to keeping your 1985 Subaru RX looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Synthetic and Blended Motor Oil, Engine Oil, and 5W-30 Full Synthetic. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Motor Oil from Trusted Brands

Looking for a reliable Motor Oil? We’ve got you covered with options from brands you know and trust like Pennzoil, Castrol, and Quaker State. For example, Pennzoil Motor Oil start at just $13.49 with an average 4.8 star rating. Castrol and Quaker State offer similar pricing and quality, backed by strong customer feedback. With over 3,251 reviews and a solid 5.0 star average, you can shop with confidence knowing other Subaru RX owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1985 Subaru RX Motor Oil at Advance Auto Parts is around $26.99, with a range that starts at $9.49 and goes up to $45.99. With 6 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Quaker State 5W-30 Full Synthetic Motor Oil, Maximizes Horsepower, 1 Quart, 550046169 start at just $9.49 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Motor Oil, don’t forget to check out other key components like Lubricants. At Advance Auto Parts, we’re here to help you keep your 1985 Subaru RX in peak condition, inside and out.

Essential 1985 Subaru RX Motor Oil

Pennzoil – Pennzoil Platinum 5W-30 Full Synthetic Motor Oil, Maximizes Engine Protection, 5 Quart, 550046126 (Part No.550046126)

Pennzoil Platinum 5W-30 Full Synthetic Motor Oil, Maximizes Engine Protection, 5 Quart, 550046126

from

$45.99
Pennzoil Platinum Full Synthetic 5W-30 is designed to maximize engine protection and is backed by a 15,000-mile protection guarantee (see Warranty Information below) 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.) Volume: 5 quarts.
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Mobil 1 – Mobil 1 Advanced Full Synthetic Motor Oil 5W-30, 1 Quart, 127104 (Part No.127104)

Mobil 1 Advanced Full Synthetic Motor Oil 5W-30, 1 Quart, 127104

from

$13.49
Mobil 1 FS European Car Formula 5W-30 helps to extend engine life, even in severe conditions, and protects 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. This technologically advanced formulation provides excellent internal engine heat protection (up to 500 degrees Fahrenheit), and low-temperature protection (to -40 degrees Fahrenheit), supporting quick cold-weather starting and ultra-fast protection. Mobil 1 FS European Car Formula 5W-30 also helps control oxidation to prevent oil breakdown. Approved for many Mercedes-Benz, VW, Audi and Porsche vehicles, this formula provides excellent turbocharged engine protection. Mobil 1 is America€™s leading synthetic motor oil brand at retail(2), recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR. ((1) Protects for 10,000 miles or 1 year, whichever comes first. Volume: 1 quart.
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Quaker State – Quaker State 5W-30 Full Synthetic Motor Oil, Maximizes Horsepower, 1 Quart, 550046169 (Part No.550046169)

Quaker State 5W-30 Full Synthetic Motor Oil, Maximizes Horsepower, 1 Quart, 550046169

from

$9.49
Quaker State Full Synthetic 5W-30 motor oil provides strong engine performance and protection against deposits between oil changes. It’s ideal for use in today’s technologically advanced engines and high-performance vehicles like sports cars, SUVs, trucks, and minivans. It is compatible with biofuels ranging from E10 to E85 and is suitable for hybrid vehicles. Designed to deliver more power and less friction, Quaker State Full Synthetic helps to maximize horsepower. It provides excellent lubrication in both high and low temperatures and maintains the viscosity from start to finish, offering optimal protection. Better for severe driving conditions than conventional and synthetic blend oils, Quaker State Full Synthetic protects against the formulation of sludge and other harmful deposits and provides improved fuel economy. 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. Volume: 1 quart.
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ARGOS – ARGOS 5W-30 Full Synthetic Motor Oil: Prevents Low-Speed Pre-Ignition, 55 Gallon, AR930-55 (Part No.AR930-55)

ARGOS 5W-30 Full Synthetic Motor Oil: Prevents Low-Speed Pre-Ignition, 55 Gallon, AR930-55

from

$1860.06
ARGOS 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. ARGOS 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. ARGOS Engine Oil Full Synthetic SAE 5W-30 and is a fully licensed GM dexos1 Gen 3 motor oil. Volume: 55 gallons.
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Mobil 1 – Mobil 1 Advanced Full Synthetic Motor Oil 5W-30, 1 Quart, 24812 (Part No.24812)

Mobil 1 Advanced Full Synthetic Motor Oil 5W-30, 1 Quart, 24812

from

$13.49
Mobil 1 motor oil utilizes our signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles of all ages. Specialty components in synthetic oil extend engine life by reducing the friction that causes deposits and sludge buildup – keeping critical engine parts clean and protected for up to 15,000 miles between oil changes.(1) Mobil 1 motor oil meets ILSAC GF-7 standards, offering superior oxidation control, enhanced protection against pre-ignition and timing chain wear, and excellent cold-start and low-temperature performance. Mobil 1 is the No. 1 selling motor oil in America at retail,(2) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR(R). (1)Protects for 15,000 miles or 1 year, whichever comes first (2)Source: Circana/ Retail Tracking Service/ Dollar Sales/ 52 weeks ending February 1, 2025 Volume: 1 quart.
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Mobil 1 – Mobil 1 Advanced Clean Full Synthetic Motor Oil 5W-30, 5 Quart, 128650 (Part No.128650)

Mobil 1 Advanced Clean Full Synthetic Motor Oil 5W-30, 5 Quart, 128650

from

$44.99
Mobil 1 Advanced Clean motor oil utilizes our signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles of all ages. Specialty components in synthetic oil extend engine life by reducing the friction that causes deposits and sludge buildup – keeping critical engine parts clean and protected for up to 20,000 miles between oil changes.(1) Mobil 1 Advanced Clean motor oil meets ILSAC GF-7 standards, offering superior oxidation control, enhanced protection against pre-ignition and timing chain wear, and excellent cold-start and low-temperature performance. Mobil 1 is the No. 1 selling motor oil in America at retail,(2) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR(R). (1)Protects for 20,000 miles or 1 year, whichever comes first. (2)Source: Circana/ Retail Tracking Service/ Dollar Sales/ 52 weeks ending February 1, 2025. (3)Based on Seq VH rocker cover sludge results. (4)vs GF-7 fuel economy requirement Volume: 5 quarts.
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Mobil 1 – Mobil 1 Advanced Clean Full Synthetic Motor Oil 5W-30, 1 Quart, 128646 (Part No.128646)

Mobil 1 Advanced Clean Full Synthetic Motor Oil 5W-30, 1 Quart, 128646

from

$13.99
Mobil 1 Advanced Clean motor oil utilizes our signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles of all ages. Specialty components in synthetic oil extend engine life by reducing the friction that causes deposits and sludge buildup – keeping critical engine parts clean and protected for up to 20,000 miles between oil changes.(1) Mobil 1 Advanced Clean motor oil meets ILSAC GF-7 standards, offering superior oxidation control, enhanced protection against pre-ignition and timing chain wear, and excellent cold-start and low-temperature performance. Mobil 1 is the No. 1 selling motor oil in America at retail,(2) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR(R). (1)Protects for 20,000 miles or 1 year, whichever comes first. (2)Source: Circana/ Retail Tracking Service/ Dollar Sales/ 52 weeks ending February 1, 2025. (3)Based on Seq VH rocker cover sludge results. (4)vs GF-7 fuel economy requirement Volume: 1 quart.
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ARGOS – ARGOS 5W-30 Full Synthetic Motor Oil: Faster Oil Flow at Start-Up, 6 Gallon, AR930-6GLBNB (Part No.AR930-6GLBNB)

ARGOS 5W-30 Full Synthetic Motor Oil: Faster Oil Flow at Start-Up, 6 Gallon, AR930-6GLBNB

from

$223.99
ARGOS 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. ARGOS 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. ARGOS Engine Oil Full Synthetic SAE 5W-30 and is a fully licensed GM dexos1 Gen 3 motor oil. Volume: 6 gallons.
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Mobil 1 – Mobil 1 FS European Car Formula Full Synthetic Motor Oil 5W-30, 5 Quart, 127105 (Part No.127105)

Mobil 1 FS European Car Formula Full Synthetic Motor Oil 5W-30, 5 Quart, 127105

from

$42.99
Mobil 1 FS European Car Formula is an advanced full synthetic motor oil engineered for the latest gasoline and diesel engine technology without particulate filters. It provides excellent cleaning power, wear protection and overall performance. Mobil 1 is the No. 1 selling motor oil in America at retail,(1) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR(R). (1)Source: Circana/ Retail Tracking Service/ Dollar Sales/ 52 weeks ending February 1, 2025 (2)Protects for 15,000 miles or 1 year, whichever comes first Volume: 5 quarts.
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FRAM – FRAM 10W-30 Conventional Motor Oil, Prevents Low-Speed Pre-Ignition, 1 Quart, F630 (Part No.F630)

FRAM 10W-30 Conventional Motor Oil, Prevents Low-Speed Pre-Ignition, 1 Quart, F630

from

$6.49
FRAM Engine Oil SAE 10W-30 utilizes a blend of high-quality conventional 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 10W-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 10W-30 meets the requirements for API SP, SN Plus, SN, SM and ILSAC GF-6A, GF-5 and earlier API and ILSAC Service Categories. Volume: 1 quart.
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FRAM – FRAM 10W-30 Conventional Motor Oil, Low-Speed Pre-Ignition Control, 5 Quart, F630-5QT (Part No.F630-5QT)

FRAM 10W-30 Conventional Motor Oil, Low-Speed Pre-Ignition Control, 5 Quart, F630-5QT

from

$24.99
FRAM Engine Oil SAE 10W-30 utilizes a blend of high quality conventional 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 10W-30 meets the requirements for API SP, SN Plus, SN, SM and ILSAC GF-6A, GF-5 and earlier API and ILSAC Service Categories. Volume: 5 quarts.
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LIQUI MOLY – LIQUI MOLY Longtime High Tech 5W-30 Full Synthetic Engine Oil, Excellent Wear Protection, 5 Liter, 2039 (Part No.2039)

LIQUI MOLY Longtime High Tech 5W-30 Full Synthetic Engine Oil, Excellent Wear Protection, 5 Liter, 2039

from

$49.99
Longtime High Tech 5W-30 Full Synthetic Engine Oil is expertly crafted for diesel engines, offering exceptional performance and protection. Designed with Low SAPS technology, it is ideal for vehicles equipped with diesel particulate filters (DPF), ensuring compatibility with modern emission systems. This premium 5W-30 oil promotes smooth engine operation, making it perfect for engines with turbochargers and catalytic converters. Its advanced formula delivers excellent wear protection, prolonging engine service life while supporting extended oil change intervals as recommended by manufacturers. Engineered for fast oil penetration, it ensures optimal lubrication from the moment you start your vehicle. Made in Germany, this full synthetic oil is a reliable choice for maintaining peak engine performance and efficiency.
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FRAM – FRAM 5W-30 Full Synthetic Motor Oil, Faster Oil Flow at Start-Up, 5 Quart, F930-5QT (Part No.F930-5QT)

FRAM 5W-30 Full Synthetic Motor Oil, Faster Oil Flow at Start-Up, 5 Quart, F930-5QT

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 & is a fully licensed GM dexos1 Gen 3 motor oil. Volume: 5 quarts.
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FRAM – FRAM 10W-40 Conventional Motor Oil, Low-Speed Pre-Ignition Control, 5 Quart, F640-5QT (Part No.F640-5QT)

FRAM 10W-40 Conventional Motor Oil, Low-Speed Pre-Ignition Control, 5 Quart, F640-5QT

from

$24.99
FRAM Engine Oil SAE 10W-40 engine oil utilizes high-quality base stocks and 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 10W-40 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. The FRAM Engine Oil SAE 10W-40 meets the requirements for API SP, SN Plus, SN, SM and earlier API Service Categories. Volume: 5 quarts.
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FRAM – FRAM High Mileage 10W-40 Conventional Motor Oil, Helps Reduce Leaks, 1 Quart, F670 (Part No.F670)

FRAM High Mileage 10W-40 Conventional Motor Oil, Helps Reduce Leaks, 1 Quart, F670

from

$6.49
FRAM Conventional High Mileage 10W40 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 10W40 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. Volume: 1 quart.
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ARGOS – ARGOS 10W-30 Full Synthetic Motor Oil: Ultimate Protection, 5 Quart, AR940-5QT (Part No.AR940-5QT)

ARGOS 10W-30 Full Synthetic Motor Oil: Ultimate Protection, 5 Quart, AR940-5QT

from

$34.99
ARGOS Engine Oil Full Synthetic SAE 10W-30 is a full synthetic motor oil blended with high quality synthetic base stocks and the latest additive technology 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. ARGOS Engine Oil Full Synthetic SAE 10W-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. Volume: 5 quarts.
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Mobil 1 – Mobil 1 Advanced Full Synthetic 5W-30 Motor Oil, Protects for 10K Miles, 12 Quart, 125222 (Part No.125222)

Mobil 1 Advanced Full Synthetic 5W-30 Motor Oil, Protects for 10K Miles, 12 Quart, 125222

from

$83.99
Whatever you’re driving, wherever you’re going, you can trust your car to get you there when you use Mobil 1 advanced full-synthetic motor oil 5W-30. Mobil 1 advanced synthetic motor oil utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles of all ages. Specialty components in synthetic oil extend engine life by reducing the friction that causes deposits and sludge buildup, keeping critical engine parts clean and protected for up to 10,000 miles between oil changes. (1) This technologically advanced motor oil formulation provides 10X (2) better internal engine heat protection than industry standards (up to 500 Degrees Fahrenheit), as well as exceptional low-temperature protection (to -30 Degrees Fahrenheit), bringing quick cold-weather starting and ultra-fast protection to your engine. 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 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 leading selling synthetic motor oil brand at retail, (3) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR.
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ARGOS – ARGOS 30W Conventional Motor Oil: Reduces Motor Wear, 1 Quart, AR530 (Part No.AR530)

ARGOS 30W Conventional Motor Oil: Reduces Motor Wear, 1 Quart, AR530

from

$8.99
ARGOS Engine Oil SAE 30 is single grade or straight-viscosity motor oil that meets the stringent API SP, SN Plus / SN, SM, SL & CF specifications. It contains a balanced blend of high VI base stocks and an advanced additive package to deliver superior performance. It is designed to provide thermal and oxidation stability, deposit control, anti-wear protection, corrosion protection and improved pumpability. ARGOS Engine Oil SAE 30 may be used in turbo-charged or naturally aspirated foreign and domestic engines recommending straight weight API SP/CF quality oil. This motor oil exceeds the stringent lubricating performance requirements of American, European, Korean, Japanese and other worldwide engine manufacturers where straight weight Engine Oil is recommended. Volume: 1 quart.
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ARGOS – ARGOS 10W-40 Conventional Motor Oil: Low-Speed Pre-Ignition Control, 1 Quart, AR640 (Part No.AR640)

ARGOS 10W-40 Conventional Motor Oil: Low-Speed Pre-Ignition Control, 1 Quart, AR640

from

$8.99
ARGOS Engine Oil SAE 10W-40 Engine Oil utilizes high-quality base stocks and 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. ARGOS Engine Oil SAE 10W-40 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. The ARGOS Engine Oil SAE 10W-40 meets the requirements for API SP, SN Plus, SN, SM and earlier API Service Categories. Volume: 1 quart.
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Castrol – Castrol GTX 10W-40 Premium Conventional Motor Oil, 5 Quarts, 15982E (Part No.15982E)

Castrol GTX 10W-40 Premium Conventional Motor Oil, 5 Quarts, 15982E

from

$35.99
Castrol GTX 10W-40 provides superior sludge protection to help extend engine life. Severe driving conditions such as heavy traffic, poor fuel quality, harsh driving conditions and exceeding oil change intervals can all cause the build-up of a thick, tar like substance called sludge. Sludge can block your engine’s vital oilways like cholesterol and if untreated, can rob an engine of its power and ultimately its life. Castrol GTX is specially engineered to prevent harmful build-up of sludge while protecting against new oil splatter formation better than tough industry standards. Volume: 5 quarts.
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ARGOS – ARGOS 10W-40 Conventional Motor Oil: Low-Speed Pre-Ignition Control, 5 Quart, AR640-5QT (Part No.AR640-5QT)

ARGOS 10W-40 Conventional Motor Oil: Low-Speed Pre-Ignition Control, 5 Quart, AR640-5QT

from

$30.99
ARGOS Engine Oil SAE 10W-40 Engine Oil utilizes high-quality base stocks and 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. ARGOS Engine Oil SAE 10W-40 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. The ARGOS Engine Oil SAE 10W-40 meets the requirements for API SP, SN Plus, SN, SM and earlier API Service Categories. Volume: 5 quarts.
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FRAM – FRAM 10W-40 Conventional Motor Oil, Low-Speed Pre-Ignition Control, 1 Quart, F640 (Part No.F640)

FRAM 10W-40 Conventional Motor Oil, Low-Speed Pre-Ignition Control, 1 Quart, F640

from

$6.49
FRAM Engine Oil SAE 10W-40 engine oil utilizes high-quality base stocks and 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 10W-40 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. The FRAM Engine Oil SAE 10W-40 meets the requirements for API SP, SN Plus, SN, SM and earlier API Service Categories. Volume: 1 quart.
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FRAM – FRAM 10W-40 Conventional Motor Oil, Prevents Low-Speed Pre-Ignition, 6 Gallon, F640-6GLBNB (Part No.F640-6GLBNB)

FRAM 10W-40 Conventional Motor Oil, Prevents Low-Speed Pre-Ignition, 6 Gallon, F640-6GLBNB

from

$173.99
FRAM Engine Oil SAE 10W-40 engine oil utilizes high-quality base stocks and 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 10W-40 contains additive technology designed to prevent low-speed pre-ignition (LSPI) while also providing increased wear protection, oxidation & shear stability over previous oil categories. The FRAM Engine Oil SAE 10W-40 meets the requirements for API SP, SN Plus, SN, SM and earlier API Service Categories. Volume: 6 gallons.
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ARGOS – ARGOS 10W-40 Conventional Motor Oil: Prevents Low-Speed Pre-Ignition, 6 Gallon, AR640-6GLBNB (Part No.AR640-6GLBNB)

ARGOS 10W-40 Conventional Motor Oil: Prevents Low-Speed Pre-Ignition, 6 Gallon, AR640-6GLBNB

from

$173.99
ARGOS Engine Oil SAE 10W-40 Engine Oil utilizes high-quality base stocks and 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. ARGOS Engine Oil SAE 10W-40 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. The ARGOS Engine Oil SAE 10W-40 meets the requirements for API SP, SN Plus, SN, SM and earlier API Service Categories. Volume: 6 gallons.
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Most Popular Synthetic and Blended Motor Oil for 1985 Subaru RXes

Enhance your 1985 Subaru RX with this popular Synthetic and Blended Motor Oil we have in stock, for $35.99.

Castrol – Castrol GTX 10W-40 Premium Conventional Motor Oil, 5 Quarts, 15982E (Part No.15982E)

Castrol GTX 10W-40 Premium Conventional Motor Oil, 5 Quarts, 15982E

from

$35.99
Castrol GTX 10W-40 provides superior sludge protection to help extend engine life. Severe driving conditions such as heavy traffic, poor fuel quality, harsh driving conditions and exceeding oil change intervals can all cause the build-up of a thick, tar like substance called sludge. Sludge can block your engine’s vital oilways like cholesterol and if untreated, can rob an engine of its power and ultimately its life. Castrol GTX is specially engineered to prevent harmful build-up of sludge while protecting against new oil splatter formation better than tough industry standards. Volume: 5 quarts.
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Best-Selling 1985 Subaru RX Engine Oil

Upgrade your RX with one of our 3 best-selling Engine Oil, earning an average 5 stars rating across 547 reviews.

Pennzoil – Pennzoil Platinum High Mileage 5W-30 Full Synthetic Motor Oil, Stops Leaks, 1 Quart, 550042728 (Part No.550042728)

Pennzoil Platinum High Mileage 5W-30 Full Synthetic Motor Oil, Stops Leaks, 1 Quart, 550042728

from

$13.49
Pennzoil Platinum High Mileage Full Synthetic 5W-30 is designed to maximize engine protection and is formulated to help stop leaks in engines with more than 75,000 miles. Backed by a 15,000-mile protection guarantee to keep you covered between oil changes and for the long run (see Warranty Information below), it is the first of its kind full synthetic high mileage oil made with natural gas and is designed to deliver less oil burn off than other high mileage oils (based on Sequence IIIH results). Pennzoil Platinum High Mileage motor oil conditions seals on older engines to give added protection to high-mileage vehicles. It offers complete protection mile after thrilling mile as it protects engines from loss of horsepower, offers excellent performance in extreme temperatures, provides unsurpassed wear protection (based on Sequence IVA wear test using SAE 5W-30), and provides better fuel economy (based on the latest industry standards). (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.) Volume: 1 quart.
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Castrol – Castrol GTX 10W-40 Premium Conventional Motor Oil, 1 Quart, 14CD5A (Part No.14CD5A)

Castrol GTX 10W-40 Premium Conventional Motor Oil, 1 Quart, 14CD5A

from

$10.99
Castrol GTX 10W-40 superior sludge protection to help extend engine life. Severe driving conditions such as heavy traffic, poor fuel quality, harsh driving conditions and exceeding oil change intervals can all cause the build-up of a thick, tar like substance called sludge. Sludge can block your engine’s vital oilways like cholesterol and if untreated, can rob an engine of its power and ultimately its life. Castrol GTX is specially engineered to prevent harmful build-up of sludge while protecting against new oil splatter formation better than tough industry standards. Volume: 1 quart.
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Pennzoil – Pennzoil Platinum 10W-30 Full Synthetic Motor Oil, Stops Engine Leaks, 5 Quart, 550045274 (Part No.550045274)

Pennzoil Platinum 10W-30 Full Synthetic Motor Oil, Stops Engine Leaks, 5 Quart, 550045274

from

$45.99
Pennzoil Platinum High Mileage Full Synthetic 10W-30 is designed to maximize engine protection and is formulated to help stop leaks in engines with more than 75,000 miles. Backed by a 15,000-mile protection guarantee to keep you covered between oil changes and for the long run (see Warranty Information below), it is the first of its kind full synthetic high mileage motor oil made with natural gas and designed to deliver less oil burn off than other high mileage oils (based on Sequence IIIH results). Pennzoil Platinum High Mileage motor oil conditions seals on older engines to give added protection to high-mileage vehicles. It offers complete protection mile after thrilling mile as it protects engines from loss of horsepower, offers excellent performance in extreme temperatures, provides unsurpassed wear protection (based on Sequence IVA wear test using SAE 5W-30), and provides better fuel economy (based on the latest industry standards). (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.) Volume: 5 quarts.
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Top-Quality 5W-30 Full Synthetic for 1985 Subaru RXes

Choose a high-quality OEM or aftermarket 5W-30 Full Synthetic for Subaru RXes and enjoy top-notch performance from $9.49.

Pennzoil – Pennzoil Platinum 5W-30 Full Synthetic Motor Oil, Maximizes Engine Protection, 5 Quart, 550046126 (Part No.550046126)

Pennzoil Platinum 5W-30 Full Synthetic Motor Oil, Maximizes Engine Protection, 5 Quart, 550046126

from

$45.99
Pennzoil Platinum Full Synthetic 5W-30 is designed to maximize engine protection and is backed by a 15,000-mile protection guarantee (see Warranty Information below) 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.) Volume: 5 quarts.
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Quaker State – Quaker State 5W-30 Full Synthetic Motor Oil, Maximizes Horsepower, 1 Quart, 550046169 (Part No.550046169)

Quaker State 5W-30 Full Synthetic Motor Oil, Maximizes Horsepower, 1 Quart, 550046169

from

$9.49
Quaker State Full Synthetic 5W-30 motor oil provides strong engine performance and protection against deposits between oil changes. It’s ideal for use in today’s technologically advanced engines and high-performance vehicles like sports cars, SUVs, trucks, and minivans. It is compatible with biofuels ranging from E10 to E85 and is suitable for hybrid vehicles. Designed to deliver more power and less friction, Quaker State Full Synthetic helps to maximize horsepower. It provides excellent lubrication in both high and low temperatures and maintains the viscosity from start to finish, offering optimal protection. Better for severe driving conditions than conventional and synthetic blend oils, Quaker State Full Synthetic protects against the formulation of sludge and other harmful deposits and provides improved fuel economy. 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. Volume: 1 quart.
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Top-Rated Motor Oil Brands For Your 1985 Subaru RX

When it comes to finding the perfect Motor Oil for your 1985 Subaru RX, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Motor Oil brands including Castrol, Pennzoil, and Quaker State, and more, all known for their exceptional customer ratings (average brand rating of 4.9 stars) and competitive prices, as low as $9.49. Purchasing a Motor Oil from us here at Advance Auto Parts is a smart move for both you and your 1985 Subaru RX, providing peace of mind with parts that meet or exceed OEM standards.

Popular Castrol 1985 Subaru RX Motor Oils

If you’re looking for a top-quality Motor Oil for your 1985 Subaru RX, Advance Auto Parts has exactly what you need with our selection of Castrol Motor Oils. We have 2 Castrol Motor Oils in stock for this fitment, all known for their durability and precision fit. With prices starting at just $10.99 and an average cost of $23.49, you’ll find the perfect Motor Oil for your needs and budget. Castrol Motor Oils for the 1985 Subaru RX come highly rated, with over 57 customer reviews and an impressive average rating of 4.9 stars. Choosing a Castrol Motor Oil from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Castrol GTX 10W-40 Premium Conventional Motor Oil, 5 Quarts, 15982E
from $35.99
(28)
Castrol GTX 10W-40 Premium Conventional Motor Oil, 5 Quarts, 15982E
“It’s oil… good oil… What more do you need?”

Top-Quality Pennzoil 1985 Subaru RX Motor Oils

For those in search of a high-quality Motor Oil for their 1985 Subaru RX, Advance Auto Parts offers a great selection of Pennzoil Motor Oils. With 3 Pennzoil Motor Oils in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Motor Oils start at just $13.49, with an average price of $35.16, giving you a range of options to suit your budget. Backed by over 2,738 customer ratings and an average rating of 4.8 stars, Pennzoil Motor Oils provide both reliability and excellent performance. Choosing a Pennzoil Motor Oil from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

FAQs for 1985 Subaru RX Motor Oils

What are the best-selling Motor Oils for 1985 Subaru RXes?

Out of 6 Motor Oils that fit 1985 Subaru RXes, the following parts are the top sellers:

What’s the price range for 1985 Subaru RX Motor Oil?

The prices of Motor Oil for the 1985 Subaru RX range from $9.49 up to $45.99 for the most premium parts.

What is the average price of a Motor Oil for a 1985 Subaru RX?

The average price for Motor Oils for the 1985 Subaru RX is $26.99. Keep in mind the variety of part types within our Motor Oil category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Motor Oil for other Subaru RX model years?

Yes, we carry Motor Oil for 3 model years of Subaru RXes between 1986 and 1989. The following model years are the most popular for Motor Oil purchases: 1989, 1988, 1987, and 1986.

Does Advance Auto Parts sell Motor Oil for any other 1985 Subaru models?

Yes. We stock Motor Oil for 5 other popular 1985 Subaru models. Some of the most popular are 1985 XT Motor Oil, 1985 DL Motor Oil, 1985 Brat Motor Oil, 1985 GL Motor Oil, and 1985 Standard Motor Oil.

What are the top-rated Motor Oil that fit the 1985 Subaru RX?

Based on 3,251 reviews by customers, our 1985 Subaru RX Motor Oil have an average customer rating of 5.0 stars. These are the highest-rated categories of Motor Oil for the 1985 Subaru RX and their top-rated products:

What types of Motor Oil do you sell for my 1985 Subaru RX?

As of 8/2/26, these are some of the most in-demand types of Motor Oil for a 1985 Subaru RX:

Can I get help with 1985 Subaru RX Motor Oil orders?

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

What is your return policy for Subaru RX Motor Oil?

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