2020 Subaru Legacy Fluids

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Keep Your 2020 Subaru Legacy in Top Shape with Quality Fluids

Whether you’re repairing or upgrading your Fluid, using high-quality parts is key to keeping your 2020 Subaru Legacy looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including AWD Fluid, Transfer Case Fluids, and Brake Fluids. 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 Fluids from Trusted Brands

Looking for a reliable Fluid? We’ve got you covered with options from brands you know and trust like Prestone and Valvoline. For example, Prestone Fluids start at just $5.99 with an average 4.8 star rating. Valvoline offer similar pricing and quality, backed by strong customer feedback. With over 1,830 reviews and a solid 5 star average, you can shop with confidence knowing other Subaru Legacy owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2020 Subaru Legacy Fluid at Advance Auto Parts is around $18.60, with a range that starts at $5.99 and goes up to $59.99. With 7 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like DOT 3 Brake Fluid: Synthetic, Prevents Corrosion, Safe For ABS, Disc, Drum Brakes, 50k miles, 32 oz., Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart, and DOT 3 Brake Fluid: Synthetic, Prevents Corrosion, Safe For ABS, Disc, Drum Brakes, 50k miles, 12 oz. start at just $5.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Fluid, don’t forget to check out other key components like Coolant/Antifreeze and Transmission Fluids. At Advance Auto Parts, we’re here to help you keep your 2020 Subaru Legacy in peak condition, inside and out.

Essential 2020 Subaru Legacy Fluids

Valvoline – MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.VV324)

MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart

from

$9.99
Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the No. 1 ATF product, suitable for use in 95% of vehicles. And now, it’s recommended for most belt & chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it’s designed to help prevent leaks, reduce wear & tear, and maximize performance. Has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Valv MaxLife Multi-Vehicle ATF is suitable for most Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW & Audi vehicles. Recommended for use in: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC; Honda/Acura ATF-Z1 and Honda CVT; Nissan/Infiniti Matic-D, Matic-J, Matic-K and Matic-S; Hyundai/Kia SP-II, SP-III, SP-IV and SPH-IV; BMW 7045E, ETL 8072B, LA2634 and LT71141; Allison C-4; Mercedes-Benz NAG-1; Volvo 1161521, 1161540, 97340 and 1273.41; Subaru ATF HP, Lineartronic chain CVT and CVT-II, Lineartronic High Torque CVT, and CV-30; and VW/Audi G-052-025-A2 and G-052-162-A1. CURRENTLY UNABLE TO SHIP THIS PRODUCT TO CUSTOMERS LOCATED IN CALIFORNIA

Product Features:
  • FOR USE IN 95% OF VEHICLES INCLUDING MOST CVTs in operation with US registered light duty applications
  • HIGH PERFORMANCE CONDITIONING AGENTS prolong seal elasticity to prevent leaks
  • IMPROVED DURABILITY & TRANSMISSION LIFE with anti-wear technology to avoid costly repairs
  • ENHANCED HIGH & LOW TEMP PERFORMANCE supports transmission fluid in all weather situations
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Valvoline – High Performance Transmission & Differential Gear Oil: Conventional 75W-90, 1 Quart (Part No.VV820)

High Performance Transmission & Differential Gear Oil: Conventional 75W-90, 1 Quart

from

$12.99
Valvoline High Performance Synthetic Gear Oil is the thermally stabile extreme pressure lubricant that offers outstanding protection for gearboxes and differentials in passenger cars, light trucks, and sport utility vehicles. Combined with high quality synthetic base oils, our formula’s superior additives help reliably safeguard against severe temperatures, shock loads, foaming, scuffing, scouring, corrosion and pitting in high load, high torque and high horsepower conditions. Can be used in conventional and limited slip hypoid differentials where GL-5 is specified as well as non-synchronized manual transmissions that require GL-4. Protect your gears with Valvoline, the #1 gear oil brand.

Product Features:
  • HIGH PERFORMANCE EXTREME-PRESSURE ADDITIVES HELP MINIMIZE WEAR in high pressure and high temperature conditions
  • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION can easily handle both winter and summer conditions for dependable coverage and protection year-round
  • REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
  • FIGHTS CORROSION AND RUST with emulsifying agents and safeguards against impurities, oxidation and thermal breakdown
  • SUPERIOR ADDITIVES help reliably safeguard against severe temperatures, shock loads, foaming, scuffing, scouring, corrosion and pitting in high load, high torque and high horsepower conditions
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Idemitsu – Type TLS Automatic Transmission Fluid, 1 Quart (Part No.30040093-75000C)

Type TLS Automatic Transmission Fluid, 1 Quart

from

$14.49
Formulated to meet the specific requirements of Toyota, Lexus, and Scion vehicles equipped with conventional (non-CVT) transmissions that require the use of ATF T-IV. Recommended for service-fill in all Toyota, Lexus, and Scion automatic transmissions where ATF T-IV is specified. Fuel economy demands and more sophisticated electronic controls have made automatic transmissions not only more complex, but also unique to each vehicle manufacturer. Long gone are the days of having just a couple choices of automatic transmission fluid type. Idemitsu is the factory fill Automatic Transmission Fluid (ATF) supplier to most Asian imports. Idemitsu application-specific ATF products match the exact friction materials and performance requirements of each different vehicle model for which they are made.

Product Features:
  • Excellent resistance to oxidation and thermal breakdown provide long fluid life and extended protection
  • Precisely engineered frictional characteristics guarantee smooth shifting and outstanding anti-shudder performance
  • Provides superior cleanliness, maintaining the transmission free of sludge and varnish deposits
  • Excellent seal compatibility and conditioning reduces risk of fluid leaks due to seal shrinkage, hardening and cracking
  • Advanced anti-wear technology provides maximum protection to gears and bearings
  • Excellent seal compatibility and conditioning reduces risk of fluid leaks due to seal shrinkage, hardening and cracking
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Valvoline – Full Synthetic High Mileage 10W-30 Engine Oil, Maximizes Engine Life, 1 Quart (Part No.VV180)

Full Synthetic High Mileage 10W-30 Engine Oil, Maximizes Engine Life, 1 Quart

from

$11.49
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:


    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
    • Extends engine life: Valvoline Full Synthetic High Mileage with MaxLife Technology is designed to extend the life of higher mileage vehicles, providing superior protection against wear, friction, heat, and deposits
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Shell – T4 Triple Protection 15W-40 Diesel Engine Oil, Enhanced Oxidation Protection, 55 Gallon (Part No.550045148)

T4 Triple Protection 15W-40 Diesel Engine Oil, Enhanced Oxidation Protection, 55 Gallon

from

$1220.00
Shell Rotella® T4 Triple Protection® 15W-40 Diesel Engine Oil delivers advanced performance and reliability for heavy-duty diesel engines. This synthetic blend oil is engineered to provide enhanced protection against oxidation, wear, and deposits, ensuring your engine stays cleaner and operates more efficiently. Designed for sustained durability, it supports emission control systems, including particulate filters and after-treatment systems, making it ideal for modern diesel engines. With improved deposit control and cleanliness, this oil helps maintain peak engine performance under demanding conditions. Its 15W-40 SAE weight ensures optimal viscosity for a wide range of operating temperatures, making it a versatile choice for various driving environments. Built on the trusted heritage of Triple Protection®, this oil adapts to your engine’s needs, offering hard-working protection that keeps your equipment running smoothly. Perfect for those who demand reliability and efficiency, this 55-gallon supply is a cost-effective solution for maintaining your fleet or heavy-duty machinery.

Product Features:


    Product Features:
    • Enhanced protection against oxidation
    • Enhanced wear protection
    • Improved deposit control/cleanliness
    • Sustained emission control system durability in particulate filters and after-treatment systems. (Compared to prior Shell Rotella® Triple Protection® 15W-40.)
    • Provides enhanced protection against oil oxidation for more efficient operation
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LIQUI MOLY – 75W-140 Full Synthetic Gear Oil, Excellent Wear Resistance, 1 Liter (Part No.20042)

75W-140 Full Synthetic Gear Oil, Excellent Wear Resistance, 1 Liter

from

$46.49
Fully synthetic hypoid gear oil, developed for use in final drives with or without wet clutch-based differentials (Limited Slip). Stable viscosity and multifunctional EP additives guarantee maximum wear protection even under extreme operating conditions. Exceeds the high requirements of well-known vehicle manufacturers and recommended for any hi-load transmission or differential in race and track vehicles or whenever added protection is needed.

Product Features:
  • Excellent viscosity/temperature properties
  • Reduces running noise
  • Outstanding corrosion protection
  • Excellent wear resistance
  • Very compatible with seals
  • High pressure-absorption capability
  • For extended oil-change intervals
  • Excellent resistance to aging
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Valvoline – Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Gallon (Part No.882505)

Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Gallon

from

$59.99
Valvoline SAE 75W-90 Full Synthetic Gear Oil provides the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Engineered to outperform, our detergent package-based formulation contains Full Synthetic base stocks and special additives that help protect parts from rust and corrosion while providing exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity, wear resistance additives that assist in protecting gear teeth, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. Valvoline SAE 75W-90 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance. Protect your gears with Valvoline, the No. 1 gear oil brand.

Product Features:
  • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION , ranging from -30 Deg F to 300 Deg F
  • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTIONá, ranging from -30 Deg F to 300 Deg F
  • REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
  • FIGHTS CORROSION AND RUST with emulsifying agents and safeguards against impurities, oxidation and thermal breakdown
  • MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP HYPOID DIFFERENTIALS where APPI GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
  • MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP HYPOID DIFFERENTIALSáwhere APPI GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
  • MEETS OR EXCEEDS THE PERFORMANCE REQUIREMENTS for Mack GO-H and GO-J; API GL-5 and API MT-1; MIL-PRF-2105E; and SAE J2360
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Castrol – Edge High Mileage 5W-30 Full Synthetic Motor Oil, Reduces Leaks & Deposits, 5 Quart (Part No.15906E)

Edge High Mileage 5W-30 Full Synthetic Motor Oil, Reduces Leaks & Deposits, 5 Quart

from

$37.99
Castrol® EDGE® High Mileage 5W-30 is an advanced full synthetic motor oil that is specifically designed for vehicles with over 75,000 miles. It’s been engineered to provide Superior Protection in 7 Critical Areas including corrosion prevention, sludge Control, timing and friction wear and 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 for your high mileage vehicle.

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-M2C961-A1
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Mobil 1 – Extended Performance 5W-30 High Mileage Full Synthetic Motor Oil, 5 Quart (Part No.15021)

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

from

$41.99
You trust your car to keep you going, even after 75,000 miles. Mobil 1 Extended Performance High Mileage full-synthetic motor oil 5W-30 gives engines with over 75,000 miles the extra care they need to go the distance. Formulated to help prevent leaks, it helps to protect critical engine parts for up to 20,000 miles between oil changes, guaranteed.(1) 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 July 1, 2023)

Product Features:
  • Mobil 1 Extended Performance High Mileage full-synthetic motor oil 5W-30 is designed for engines with over 75,000 miles to go up to 20,000 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
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)
  • Helps extend engine life by working to prevent damaging deposits and sludge buildup
  • Manufacturer Part Number: 123843
  • Versatile Compatibility: Recommended 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.
  • Trusted Brand: Mobil 1 is America’s No. 1 synthetic motor oil brand at retail, trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR«.
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Prestone – DOT 3 Brake Fluid: MAX Synthetic, Highest Grade, Superior Protection, 100k miles, 32 oz. (Part No.AS410)

DOT 3 Brake Fluid: MAX Synthetic, Highest Grade, Superior Protection, 100k miles, 32 oz.

from

$14.29
Prestone MAX DOT 3 Motor Vehicle Brake Fluid is our highest grade formula, maximizing performance vs. DOT standard. Prestone MAX is our best brake fluid at protecting against overheating and brake fade. With 100,000 mile fluid life, our longest life fluid has 2X more miles between replacement than regular Prestone DOT 3. Prestone MAX has superior performance in severe braking conditions when compared to regular Prestone DOT 3, which means even more piece of mind about the braking system. This synthetic fluid starts with our highest dry boiling point giving our best protection against performance decline due to water absorption. Prestone MAX DOT 3 is safe to use in all DOT 3 braking systems, ABS, disc or drum, and can mix with any DOT 3 fluid. Mixing Prestone MAX with other fluids will lower the performance rating for miles and boil points, for best results replace completely with Prestone MAX DOT 3. It is recommended to only use the DOT fluid specified for your car. Using a different DOT product can affect the boiling point or replacement interval if the wrong fluid is used.

Product Features:
  • 100,000 Mile Fluid Life
  • Prevent Overheating and Brake Fade with Our Highest Grade Formula. Prevents corrosion of all metals within the braking system.
  • Superior Protection in Extreme Braking Conditions
  • Synthetic, Long Life Formula – 2X Longer than regular Prestone DOT 3
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Prestone – DOT 3 Brake Fluid: Synthetic, Prevents Corrosion, Safe For ABS, Disc, Drum Brakes, 50k miles, 32 oz. (Part No.AS401)

DOT 3 Brake Fluid: Synthetic, Prevents Corrosion, Safe For ABS, Disc, Drum Brakes, 50k miles, 32 oz.

from

$11.99
Prestone DOT 3 Motor Vehicle Brake delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 3. This synthetic fluid starts with a higher dry boiling point than the DOT minimum standard to protect against overheating, brake fade and performance decline due to water absorption. This extended life (50,000 mile) fluid is also formulated to prevent corrosion of all metals within the braking system.  This formula is safe to use in all DOT 3 braking systems (ABS, disc or drum) and can mix with any DOT 3 fluid. It is recommended to only use the DOT fluid specified for your car, as using a different DOT product can affect the boiling point or replacement interval if the wrong fluid is used.

Product Features:
  • 50,000 Mile Fluid Life
  • Prevent Overheating & Brake Fade with High Grade Formula
  • Protects against performance decline due to water absorption. Prevents corrosion of all metals within the braking system.
  • Synthetic, Extended Fluid Life Formula
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Prestone – MAX DOT 3 Brake Fluid: 12 oz. (Part No.AS415)

MAX DOT 3 Brake Fluid: 12 oz.

from

$5.99
Prestone® DOT 3 Motor Vehicle Brake Fluid delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 3. This synthetic fluid starts with a higher dry boiling point than the DOT minimum standard to protect against overheating, brake fade and performance decline due to water absorption. This extended life (50,000 mile) fluid is also formulated to prevent corrosion of all metals within the braking system. This formula is safe to use in all DOT 3 braking systems (ABS, disc or drum) and can mix with any DOT 3 fluid. It is recommended to only use the DOT fluid specified for your car, as using a different DOT product can affect the boiling point or replacement interval if the wrong fluid is used.

Product Features:
  • 50,000 Mile Fluid Life
  • Prevent Overheating & Brake Fade with High Grade Formula*
  • Protects against performance decline due to water absorption. Prevents corrosion of all metals within the braking system
  • Synthetic, Extended Fluid Life Formula
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Prestone – DOT 3 Brake Fluid: Synthetic, Prevents Corrosion, Safe For ABS, Disc, Drum Brakes, 50k miles, 12 oz. (Part No.AS400)

DOT 3 Brake Fluid: Synthetic, Prevents Corrosion, Safe For ABS, Disc, Drum Brakes, 50k miles, 12 oz.

from

$5.99
Prestone DOT 3 Motor Vehicle Brake Fluid delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 3. This synthetic fluid starts with a higher dry boiling point than the DOT minimum standard to protect against overheating, brake fade and performance decline due to water absorption. This extended life (50,000 mile) fluid is also formulated to prevent corrosion of all metals within the braking system.  This formula is safe to use in all DOT 3 braking systems (ABS, disc or drum) and can mix with any DOT 3 fluid. It is recommended to only use the DOT fluid specified for your car, as using a different DOT product can affect the boiling point or replacement interval if the wrong fluid is used.

Product Features:
  • 50,000 Mile Fluid Life
  • Prevent Overheating & Brake Fade with High Grade Formula
  • Protects against performance decline due to water absorption. Prevents corrosion of all metals within the braking system.
  • Synthetic, Extended Fluid Life Formula
See More

Valvoline – Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (Part No.889785)

Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart

from

$18.99
We’ve squeezed innovation into every ounce of Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil, the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Our unique new flexible pouch makes getting into the tightest places to lubricate gears easier than ever and with less waste. The superior detergent package-based formulation contains fully synthetic basestocks and special additives that help protect parts from rust and corrosion while providing exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity, wear resistance additives that assist in protecting gear teeth, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance.

Product Features:
  • FLEXIBLE POUCH FOR EASIER USE WITH LESS WASTE in tight, hard to reach undercarriage situations.
  • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION ranging from -30F to 300F degrees for dependable coverage year-round
  • REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
  • MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP REAR DIFFERENTIALS where API GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
  • MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS for Mack GO-H and GO-J; API GL-5 and API MT-1; MIL-PRF-2105E; and SAE J2360
See More

Most Popular AWD Fluid for 2020 Subaru Legacies

Enhance your 2020 Subaru Legacy with this popular AWD Fluid we have in stock, for $18.99.

Valvoline – Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (Part No.889785)

Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart

from

$18.99
We’ve squeezed innovation into every ounce of Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil, the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Our unique new flexible pouch makes getting into the tightest places to lubricate gears easier than ever and with less waste. The superior detergent package-based formulation contains fully synthetic basestocks and special additives that help protect parts from rust and corrosion while providing exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity, wear resistance additives that assist in protecting gear teeth, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance.

Product Features:
  • FLEXIBLE POUCH FOR EASIER USE WITH LESS WASTE in tight, hard to reach undercarriage situations.
  • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION ranging from -30F to 300F degrees for dependable coverage year-round
  • REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
  • MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP REAR DIFFERENTIALS where API GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
  • MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS for Mack GO-H and GO-J; API GL-5 and API MT-1; MIL-PRF-2105E; and SAE J2360
See More

Best-Selling 2020 Subaru Legacy Transfer Case Fluids

Upgrade your Legacy with one of our 2 best-selling Transfer Case Fluids, earning an average 5 stars rating across 364 reviews.

Valvoline – Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Gallon (Part No.882505)

Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Gallon

from

$59.99
Valvoline SAE 75W-90 Full Synthetic Gear Oil provides the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Engineered to outperform, our detergent package-based formulation contains Full Synthetic base stocks and special additives that help protect parts from rust and corrosion while providing exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity, wear resistance additives that assist in protecting gear teeth, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. Valvoline SAE 75W-90 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance. Protect your gears with Valvoline, the No. 1 gear oil brand.

Product Features:
  • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION , ranging from -30 Deg F to 300 Deg F
  • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTIONá, ranging from -30 Deg F to 300 Deg F
  • REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
  • FIGHTS CORROSION AND RUST with emulsifying agents and safeguards against impurities, oxidation and thermal breakdown
  • MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP HYPOID DIFFERENTIALS where APPI GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
  • MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP HYPOID DIFFERENTIALSáwhere APPI GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
  • MEETS OR EXCEEDS THE PERFORMANCE REQUIREMENTS for Mack GO-H and GO-J; API GL-5 and API MT-1; MIL-PRF-2105E; and SAE J2360
See More

Valvoline – High Performance Transmission & Differential Gear Oil: Conventional 75W-90, 1 Quart (Part No.VV820)

High Performance Transmission & Differential Gear Oil: Conventional 75W-90, 1 Quart

from

$12.99
Valvoline High Performance Synthetic Gear Oil is the thermally stabile extreme pressure lubricant that offers outstanding protection for gearboxes and differentials in passenger cars, light trucks, and sport utility vehicles. Combined with high quality synthetic base oils, our formula’s superior additives help reliably safeguard against severe temperatures, shock loads, foaming, scuffing, scouring, corrosion and pitting in high load, high torque and high horsepower conditions. Can be used in conventional and limited slip hypoid differentials where GL-5 is specified as well as non-synchronized manual transmissions that require GL-4. Protect your gears with Valvoline, the #1 gear oil brand.

Product Features:
  • HIGH PERFORMANCE EXTREME-PRESSURE ADDITIVES HELP MINIMIZE WEAR in high pressure and high temperature conditions
  • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION can easily handle both winter and summer conditions for dependable coverage and protection year-round
  • REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
  • FIGHTS CORROSION AND RUST with emulsifying agents and safeguards against impurities, oxidation and thermal breakdown
  • SUPERIOR ADDITIVES help reliably safeguard against severe temperatures, shock loads, foaming, scuffing, scouring, corrosion and pitting in high load, high torque and high horsepower conditions
See More

Top-Quality Brake Fluids for 2020 Subaru Legacies

Choose a high-quality OEM or aftermarket Brake Fluid for Subaru Legacies and enjoy top-notch performance from $5.99.

Prestone – DOT 3 Brake Fluid: Synthetic, Prevents Corrosion, Safe For ABS, Disc, Drum Brakes, 50k miles, 32 oz. (Part No.AS401)

DOT 3 Brake Fluid: Synthetic, Prevents Corrosion, Safe For ABS, Disc, Drum Brakes, 50k miles, 32 oz.

from

$11.99
Prestone DOT 3 Motor Vehicle Brake delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 3. This synthetic fluid starts with a higher dry boiling point than the DOT minimum standard to protect against overheating, brake fade and performance decline due to water absorption. This extended life (50,000 mile) fluid is also formulated to prevent corrosion of all metals within the braking system.  This formula is safe to use in all DOT 3 braking systems (ABS, disc or drum) and can mix with any DOT 3 fluid. It is recommended to only use the DOT fluid specified for your car, as using a different DOT product can affect the boiling point or replacement interval if the wrong fluid is used.

Product Features:
  • 50,000 Mile Fluid Life
  • Prevent Overheating & Brake Fade with High Grade Formula
  • Protects against performance decline due to water absorption. Prevents corrosion of all metals within the braking system.
  • Synthetic, Extended Fluid Life Formula
See More

Prestone – DOT 3 Brake Fluid: Synthetic, Prevents Corrosion, Safe For ABS, Disc, Drum Brakes, 50k miles, 12 oz. (Part No.AS400)

DOT 3 Brake Fluid: Synthetic, Prevents Corrosion, Safe For ABS, Disc, Drum Brakes, 50k miles, 12 oz.

from

$5.99
Prestone DOT 3 Motor Vehicle Brake Fluid delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 3. This synthetic fluid starts with a higher dry boiling point than the DOT minimum standard to protect against overheating, brake fade and performance decline due to water absorption. This extended life (50,000 mile) fluid is also formulated to prevent corrosion of all metals within the braking system.  This formula is safe to use in all DOT 3 braking systems (ABS, disc or drum) and can mix with any DOT 3 fluid. It is recommended to only use the DOT fluid specified for your car, as using a different DOT product can affect the boiling point or replacement interval if the wrong fluid is used.

Product Features:
  • 50,000 Mile Fluid Life
  • Prevent Overheating & Brake Fade with High Grade Formula
  • Protects against performance decline due to water absorption. Prevents corrosion of all metals within the braking system.
  • Synthetic, Extended Fluid Life Formula
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Prestone – DOT 3 Brake Fluid: MAX Synthetic, Highest Grade, Superior Protection, 100k miles, 32 oz. (Part No.AS410)

DOT 3 Brake Fluid: MAX Synthetic, Highest Grade, Superior Protection, 100k miles, 32 oz.

from

$14.29
Prestone MAX DOT 3 Motor Vehicle Brake Fluid is our highest grade formula, maximizing performance vs. DOT standard. Prestone MAX is our best brake fluid at protecting against overheating and brake fade. With 100,000 mile fluid life, our longest life fluid has 2X more miles between replacement than regular Prestone DOT 3. Prestone MAX has superior performance in severe braking conditions when compared to regular Prestone DOT 3, which means even more piece of mind about the braking system. This synthetic fluid starts with our highest dry boiling point giving our best protection against performance decline due to water absorption. Prestone MAX DOT 3 is safe to use in all DOT 3 braking systems, ABS, disc or drum, and can mix with any DOT 3 fluid. Mixing Prestone MAX with other fluids will lower the performance rating for miles and boil points, for best results replace completely with Prestone MAX DOT 3. It is recommended to only use the DOT fluid specified for your car. Using a different DOT product can affect the boiling point or replacement interval if the wrong fluid is used.

Product Features:
  • 100,000 Mile Fluid Life
  • Prevent Overheating and Brake Fade with Our Highest Grade Formula. Prevents corrosion of all metals within the braking system.
  • Superior Protection in Extreme Braking Conditions
  • Synthetic, Long Life Formula – 2X Longer than regular Prestone DOT 3
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Prestone – MAX DOT 3 Brake Fluid: 12 oz. (Part No.AS415)

MAX DOT 3 Brake Fluid: 12 oz.

from

$5.99
Prestone® DOT 3 Motor Vehicle Brake Fluid delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 3. This synthetic fluid starts with a higher dry boiling point than the DOT minimum standard to protect against overheating, brake fade and performance decline due to water absorption. This extended life (50,000 mile) fluid is also formulated to prevent corrosion of all metals within the braking system. This formula is safe to use in all DOT 3 braking systems (ABS, disc or drum) and can mix with any DOT 3 fluid. It is recommended to only use the DOT fluid specified for your car, as using a different DOT product can affect the boiling point or replacement interval if the wrong fluid is used.

Product Features:
  • 50,000 Mile Fluid Life
  • Prevent Overheating & Brake Fade with High Grade Formula*
  • Protects against performance decline due to water absorption. Prevents corrosion of all metals within the braking system
  • Synthetic, Extended Fluid Life Formula
See More

Top-Rated Fluid Brands For Your 2020 Subaru Legacy

When it comes to finding the perfect Fluid for your 2020 Subaru Legacy, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Fluid brands including Prestone and Valvoline, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $5.99. Purchasing a Fluid from us here at Advance Auto Parts is a smart move for both you and your 2020 Subaru Legacy, providing peace of mind with parts that meet or exceed OEM standards.

Popular Prestone 2020 Subaru Legacy Fluids

If you’re looking for a top-quality Fluid for your 2020 Subaru Legacy, Advance Auto Parts has exactly what you need with our selection of Prestone Fluids. We have 2 Prestone Fluids in stock for this fitment, all known for their durability and precision fit. With prices starting at just $5.99 and an average cost of $8.99, you’ll find the perfect Fluid for your needs and budget. Prestone Fluids for the 2020 Subaru Legacy come highly rated, with over 246 customer reviews and an impressive average rating of 4.8 stars. Choosing a Prestone Fluid from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

Top-Quality Valvoline 2020 Subaru Legacy Fluids

For those in search of a high-quality Fluid for their 2020 Subaru Legacy, Advance Auto Parts offers a great selection of Valvoline Fluids. With 1 Valvoline Fluids in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Fluids start at just $59.99, giving you a range of options to suit your budget. Backed by over 364 customer ratings and an average rating of 4.8 stars, Valvoline Fluids provide both reliability and excellent performance. Choosing a Valvoline Fluid from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

FAQs for 2020 Subaru Legacy Fluids

What are the best-selling Fluids for 2020 Subaru Legacies?

What’s the price range for 2020 Subaru Legacy Fluids?

The prices of Fluids for the 2020 Subaru Legacy range from $5.99 up to $59.99 for the most premium parts.

What is the average price of a Fluid for a 2020 Subaru Legacy?

The average price for Fluids for the 2020 Subaru Legacy is $18.60. Keep in mind the variety of part types within our Fluid category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Fluids for other Subaru Legacy model years?

Yes, we carry Fluids for 34 model years of Subaru Legacies between 1990 and 2025. The following model years are the most popular for Fluid purchases: 2022, 2021, 2019, 2018, 2017, 2016, 2015, 2014, and 2013.

Does Advance Auto Parts sell Fluids for any other 2020 Subaru models?

Yes. We stock Fluids for 6 other popular 2020 Subaru models. Some of the most popular are 2020 Outback Fluids, 2020 Impreza Fluids, 2020 Forester Fluids, 2020 WRX Fluids, and 2020 Crosstrek Fluids.

What are the top-rated Fluids that fit the 2020 Subaru Legacy?

Based on 1,830 reviews by customers, our 2020 Subaru Legacy Fluids have an average customer rating of 5 stars. These are the highest-rated categories of Fluids for the 2020 Subaru Legacy and their top-rated products:

What types of Fluids do you sell for my 2020 Subaru Legacy?

As of 3/1/26, these are some of the most in-demand types of Fluids for a 2020 Subaru Legacy:

Can I get help with 2020 Subaru Legacy Fluid orders?

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

What is your return policy for Subaru Legacy Fluids?

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