1986 GMC S15 Fluids

Keep Your 1986 GMC S15 in Top Shape with Quality Fluids

When it comes to maintaining or upgrading your 1986 GMC S15, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Fluid for your S15, which is why we carry a wide range of OEM and aftermarket Fluids that are built to last, including Brake Fluids, Transfer Case Fluids, Power Steering Fluids, and more. Whether you’re replacing a damaged Fluid or looking to upgrade, our selection of Fluids for the 1986 GMC S15 ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Top-Rated Fluids from Trusted Brands

When it comes to trusted Fluid brands, we’ve got you covered. Our inventory features Fluids from top names like Valvoline and Prestone, and more. For example, Valvoline Fluids start at just $11.49 and have an average rating of 4.8 stars, while Prestone Fluids start at $9.99 with a 4.8 stars rating. With over 3,416 customer reviews and an overall 5 stars rating for our 1986 GMC S15 Fluids. Check out below the top choices among fellow GMC S15 owners.

Competitive Prices and Extensive Inventory

On average, a Fluid for a 1986 GMC S15 at Advance Auto Parts costs $15.72, with prices ranging from as low as $5.79 to $36.99. We stock 12 Fluids from 2 trusted brands, so you can be confident you’re getting the best options available. Some of our most popular choices for Fluids include Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 32 oz, DOT 3 Brake Fluid: Synthetic, Prevents Corrosion, Safe For ABS, Disc, Drum Brakes, 50k miles, 32 oz, and Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 oz., all starting at just $9.99. These Fluids are designed to fit your S15 perfectly, offering both functionality and style.

Explore Related Parts

And while you’re here, don’t forget to check out related part categories like Coolant/Antifreeze and Transmission Fluids to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 1986 GMC S15 running smoothly and looking great.

Essential 1986 GMC S15 Fluids

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
See More

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

$12.79
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 & 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
See More

Prestone – MAX DOT 3 Synthetic Brake Fluid, 12 oz. (Part No.AS415)

MAX DOT 3 Synthetic Brake Fluid, 12 oz.

from

$5.79
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 (1)
  • 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 – Advanced Full Synthetic 5W-30 Motor Oil: Maximizes Engine Life, 5 Quart (Part No.881164)

Advanced Full Synthetic 5W-30 Motor 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, GM dexos 1 Gen 3
  • 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.
See More

Mobil 1 – Extended Performance 5W-30 Full Synthetic Motor Oil, 1 Quart (Part No.14976)

Extended Performance 5W-30 Full Synthetic Motor Oil, 1 Quart

from

$12.99
If you trust your vehicle to be there for you, you need to be there for its engine, with Mobil 1 Extended Performance full-synthetic motor oil 5W-30. Our ultimate full-synthetic motor oil meets or exceeds the industry’s toughest standards to help you get the most from your engine for up to 20,000 miles between oil changes, guaranteed.(1) Mobil 1 Extended Performance utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of maximized engine power. This cutting-edge formula is recommended by ExxonMobil for all types of modern vehicles, including high-performance, turbo-charged, and supercharged gasoline and diesel multi-valve fuel-injected engines found in passenger cars, SUVs, light vans, and light trucks. Mobil 1 is America’s No. 1 synthetic motor oil brand at retail,(2) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR®. ((1)Protects for up to 20,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. (3)Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ PCMO full-synthetic/ 52 weeks ending Feb 25, 2023)

Product Features:
  • Mobil 1 Extended Performance full-synthetic motor oil 5W-30 helps protect critical engine parts for up to 20,000 miles between oil changes, (1) controlling oxidation to prevent oil breakdown and maintaining excellent viscosity.
  • Utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of power
  • Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
  • Helps extend engine life by working to prevent damaging deposits and sludge buildup
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)
  • Manufacturer Part Number: 112627
  • 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«.
See More

Valvoline – Advanced Full Synthetic 5W-30 Engine Oil: Maximizes Engine Life, 1 Quart (Part No.VV955)

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

from

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

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

Mobil 1 – Extended Performance 5W-30 Full Synthetic Motor Oil, 5 Quart (Part No.14977)

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

from

$41.99
If you trust your vehicle to be there for you, you need to be there for its engine, with Mobil 1 Extended Performance full-synthetic motor oil 5W-30. Our ultimate full-synthetic motor oil meets or exceeds the industry’s toughest standards to help you get the most from your engine for up to 20,000 miles between oil changes, guaranteed.(1) Utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of maximized engine power. This cutting-edge formula is recommended by ExxonMobil for all types of modern vehicles, including high-performance, turbo-charged, and supercharged gasoline and diesel multi-valve fuel-injected engines found in passenger cars, SUVs, light vans, and light trucks. Mobil 1 is America’s No. 1 synthetic motor oil brand at retail,(2) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR®. ((1)Protects for up to 20,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US.(2)Source: The NPD Group/Retail Tracking Service/Dollar Sales/PCMO full-synthetic/52 weeks ending Feb 25, 2023)

Product Features:
  • Mobil 1 Extended Performance full-synthetic motor oil 5W-30 helps protect critical engine parts for up to 20,000 miles between oil changes, (1) controlling oxidation to prevent oil breakdown and maintaining excellent viscosity.
  • Utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of power
  • Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
  • Helps extend engine life by working to prevent damaging deposits and sludge buildup
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)
  • Manufacturer Part Number: 120766
  • Versatile Compatibility: Recommended for all types of modern vehicles, including high-performance, turbo-charged, and supercharged gasoline and diesel multi-valve fuel-injected engines in passenger cars, SUVs, light vans, and light trucks.
  • 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«.
See More

Prestone – Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 32 oz (Part No.AS263Y)

Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 32 oz

from

$10.49
Prestone® Power Steering Fluid + Stop Leak (PSF+SL) delivers increased system life and prevents & stops system leaks. Stop Leak additives renew, restore and condition seals in the power steering system. These seals harden and shrink over time which are the likely cause of leaks. The stop leak additives also prevent leaks by rejuvenating seals before they leak. Also designed with Anti-wear System Protection, Prestone PSF+SL protects against pump failure, squeals and clogs. This 50,000 mile fluid life is formulated for use in all manufacturers; cars, SUVs, crossovers, and light and medium duty trucks. This a conventional fluid. Many cars 2006 and newer use synthetic based fluids for longer life and better protection. Conventional and synthetic fluids can be mixed but performance and replacement intervals are reduced by the conventional fluid.

Product Features:
  • 50,000 Mile Fluid Life
  • Includes Stop Leak Additives to prevent and stop power steering system leaks.
  • Anti-Wear Protection = Increased System Life. Protects against pump failure, squeals and clogs. Corrosion protection for metals, rubber & gasket components.
  • Conventional Formula – For use in all manufacturers
See More

Prestone – MAX Power Steering Fluid: American Vehicles, With Stop Leak, Enhances System Life, 100k miles, 12 oz (Part No.AS277)

MAX Power Steering Fluid: American Vehicles, With Stop Leak, Enhances System Life, 100k miles, 12 oz

from

$14.99
Prestone® MAX American Vehicles Power Steering Fluid (PSF) + Stop Leak maximizes and increases system life + the power to stop leaks. Stop Leak additives renew, restore and condition seals in the power steering system. These seals harden and shrink over time which are the likely cause of leaks. This formula is also great at preventing leaks by rejuvenating seals before they leak. This synthetic fluid is designed with 2X Anti-wear System Protection, which means more protection against pump failure, squeals and clogs. 100,000 mile fluid life, 2X more than conventional fluid, extends the time between replacement. This fluid is formulated for American vehicle manufacturers: Ford, Lincoln, Mercury, Dodge, Ram, Jeep, Chrysler, GMC, Chevrolet, Buick, Cadillac, Pontiac, Oldsmobile and others. Many cars 2006 and newer use synthetic based fluids for longer life and better protection. Conventional and synthetic fluids can be mixed but performance and replacement intervals are reduced by the conventional fluid.

Product Features:
  • 100,000 Mile Fluid Life. Synthetic Formula for longer life and more protection
  • MAX + Stop Leak. Stop Leak Additives to prevent and stop power steering system leaks.
  • For use in American vehicle manufacturers: Ford, Lincoln, Mercury, Dodge, Ram, Jeep, Chrysler, GMC, Chevrolet, Buick, Cadillac, Pontiac, Oldsmobile and other
  • 2X Anti-Wear Protection for enhanced System Life vs. conventional fluid. More protection against pump failure, squeals and clogs
See More

Prestone – Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 oz. (Part No.AS261Y/1)

Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 oz.

from

$9.99
Prestone® Power Steering Fluid (PSF) delivers increased system life. Designed with Anti-wear System Protection, Prestone PSF protects against pump failure, squeals and clogs. This 50,000 mile fluid life is formulated for use in all manufacturers; cars, SUVs, crossovers, and light and medium duty trucks. This a conventional fluid. Many cars 2006 and newer use synthetic based fluids for longer life and better protection. Conventional and synthetic fluids can be mixed but performance and replacement intervals are reduced by the conventional fluid.

Product Features:
  • 50,000 Mile Fluid Life
  • Anti-Wear Protection = Increased System Life. Protects against pump failure, squeals and clogs. Corrosion protection for metals, rubber & gasket components.
  • For use in all manufacturers
  • Conventional Formula – For use in all manufacturers
See More

Valvoline – DEX/MERC Automatic Transmission Fluid, 1 Gallon (Part No.773636)

DEX/MERC Automatic Transmission Fluid, 1 Gallon

from

$35.99
Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON®, DEXRON®-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Product Features:
  • Formulated with premium base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Prestone – Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 12 oz (Part No.AS262)

Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 12 oz

from

$6.99
Prestone® Power Steering Fluid + Stop Leak (PSF+SL) delivers increased system life and prevents & stops system leaks. Stop Leak additives renew, restore and condition seals in the power steering system. These seals harden and shrink over time which are the likely cause of leaks. The stop leak additives also prevent leaks by rejuvenating seals before they leak. Also designed with Anti-wear System Protection, Prestone PSF+SL protects against pump failure, squeals and clogs. This 50,000 mile fluid life is formulated for use in all manufacturers; cars, SUVs, crossovers, and light and medium duty trucks. This a conventional fluid. Many cars 2006 and newer use synthetic based fluids for longer life and better protection. Conventional and synthetic fluids can be mixed but performance and replacement intervals are reduced by the conventional fluid.

Product Features:
  • 50,000 Mile Fluid Life
  • Includes Stop Leak Additives to prevent and stop power steering system leaks.
  • Anti-Wear Protection = Increased System Life. Protects against pump failure, squeals and clogs. Corrosion protection for metals, rubber & gasket components.
  • Conventional Formula – For use in all manufacturers
See More

Valvoline – DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (Part No.798153)

DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart

from

$11.99
Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands of many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON*, DEXRON*-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Product Features:
  • Formulated with premium base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Most Popular Brake Fluids for 1986 GMC S15s

Enhance your 1986 GMC S15 with one of the 4 Brake Fluids we have in stock, starting at just $5.79.

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
See More

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

$12.79
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 & 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
See More

Prestone – MAX DOT 3 Synthetic Brake Fluid, 12 oz. (Part No.AS415)

MAX DOT 3 Synthetic Brake Fluid, 12 oz.

from

$5.79
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 (1)
  • Protects against performance decline due to water absorption. Prevents corrosion of all metals within the braking system
  • Synthetic, Extended Fluid Life Formula
See More

Best-Selling 1986 GMC S15 Transfer Case Fluids

Upgrade your S15 with one of our 2 best-selling Transfer Case Fluids, earning an average 5 stars rating across 1,380 reviews.

Valvoline – Advanced Full Synthetic 5W-30 Motor Oil: Maximizes Engine Life, 5 Quart (Part No.881164)

Advanced Full Synthetic 5W-30 Motor 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, GM dexos 1 Gen 3
  • 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.
See More

Valvoline – Advanced Full Synthetic 5W-30 Engine Oil: Maximizes Engine Life, 1 Quart (Part No.VV955)

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

from

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

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

Top-Quality Power Steering Fluids for 1986 GMC S15s

Choose a high-quality OEM or aftermarket Power Steering Fluid for GMC S15s and enjoy top-notch performance from $6.99.

Prestone – Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 oz. (Part No.AS261Y/1)

Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 oz.

from

$9.99
Prestone® Power Steering Fluid (PSF) delivers increased system life. Designed with Anti-wear System Protection, Prestone PSF protects against pump failure, squeals and clogs. This 50,000 mile fluid life is formulated for use in all manufacturers; cars, SUVs, crossovers, and light and medium duty trucks. This a conventional fluid. Many cars 2006 and newer use synthetic based fluids for longer life and better protection. Conventional and synthetic fluids can be mixed but performance and replacement intervals are reduced by the conventional fluid.

Product Features:
  • 50,000 Mile Fluid Life
  • Anti-Wear Protection = Increased System Life. Protects against pump failure, squeals and clogs. Corrosion protection for metals, rubber & gasket components.
  • For use in all manufacturers
  • Conventional Formula – For use in all manufacturers
See More

Valvoline – DEX/MERC Automatic Transmission Fluid, 1 Gallon (Part No.773636)

DEX/MERC Automatic Transmission Fluid, 1 Gallon

from

$35.99
Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON®, DEXRON®-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Product Features:
  • Formulated with premium base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Prestone – Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 32 oz (Part No.AS263Y)

Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 32 oz

from

$10.49
Prestone® Power Steering Fluid + Stop Leak (PSF+SL) delivers increased system life and prevents & stops system leaks. Stop Leak additives renew, restore and condition seals in the power steering system. These seals harden and shrink over time which are the likely cause of leaks. The stop leak additives also prevent leaks by rejuvenating seals before they leak. Also designed with Anti-wear System Protection, Prestone PSF+SL protects against pump failure, squeals and clogs. This 50,000 mile fluid life is formulated for use in all manufacturers; cars, SUVs, crossovers, and light and medium duty trucks. This a conventional fluid. Many cars 2006 and newer use synthetic based fluids for longer life and better protection. Conventional and synthetic fluids can be mixed but performance and replacement intervals are reduced by the conventional fluid.

Product Features:
  • 50,000 Mile Fluid Life
  • Includes Stop Leak Additives to prevent and stop power steering system leaks.
  • Anti-Wear Protection = Increased System Life. Protects against pump failure, squeals and clogs. Corrosion protection for metals, rubber & gasket components.
  • Conventional Formula – For use in all manufacturers
See More

Prestone – Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 12 oz (Part No.AS262)

Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 12 oz

from

$6.99
Prestone® Power Steering Fluid + Stop Leak (PSF+SL) delivers increased system life and prevents & stops system leaks. Stop Leak additives renew, restore and condition seals in the power steering system. These seals harden and shrink over time which are the likely cause of leaks. The stop leak additives also prevent leaks by rejuvenating seals before they leak. Also designed with Anti-wear System Protection, Prestone PSF+SL protects against pump failure, squeals and clogs. This 50,000 mile fluid life is formulated for use in all manufacturers; cars, SUVs, crossovers, and light and medium duty trucks. This a conventional fluid. Many cars 2006 and newer use synthetic based fluids for longer life and better protection. Conventional and synthetic fluids can be mixed but performance and replacement intervals are reduced by the conventional fluid.

Product Features:
  • 50,000 Mile Fluid Life
  • Includes Stop Leak Additives to prevent and stop power steering system leaks.
  • Anti-Wear Protection = Increased System Life. Protects against pump failure, squeals and clogs. Corrosion protection for metals, rubber & gasket components.
  • Conventional Formula – For use in all manufacturers
See More

Prestone – MAX Power Steering Fluid: American Vehicles, With Stop Leak, Enhances System Life, 100k miles, 12 oz (Part No.AS277)

MAX Power Steering Fluid: American Vehicles, With Stop Leak, Enhances System Life, 100k miles, 12 oz

from

$14.99
Prestone® MAX American Vehicles Power Steering Fluid (PSF) + Stop Leak maximizes and increases system life + the power to stop leaks. Stop Leak additives renew, restore and condition seals in the power steering system. These seals harden and shrink over time which are the likely cause of leaks. This formula is also great at preventing leaks by rejuvenating seals before they leak. This synthetic fluid is designed with 2X Anti-wear System Protection, which means more protection against pump failure, squeals and clogs. 100,000 mile fluid life, 2X more than conventional fluid, extends the time between replacement. This fluid is formulated for American vehicle manufacturers: Ford, Lincoln, Mercury, Dodge, Ram, Jeep, Chrysler, GMC, Chevrolet, Buick, Cadillac, Pontiac, Oldsmobile and others. Many cars 2006 and newer use synthetic based fluids for longer life and better protection. Conventional and synthetic fluids can be mixed but performance and replacement intervals are reduced by the conventional fluid.

Product Features:
  • 100,000 Mile Fluid Life. Synthetic Formula for longer life and more protection
  • MAX + Stop Leak. Stop Leak Additives to prevent and stop power steering system leaks.
  • For use in American vehicle manufacturers: Ford, Lincoln, Mercury, Dodge, Ram, Jeep, Chrysler, GMC, Chevrolet, Buick, Cadillac, Pontiac, Oldsmobile and other
  • 2X Anti-Wear Protection for enhanced System Life vs. conventional fluid. More protection against pump failure, squeals and clogs
See More

Our Top Pick for a 1986 GMC S15 Hydraulic Fluid

Invest in a durable Hydraulic Fluid for your 1986 Ford, knowing you’re getting trusted brands and expert craftsmanship.

Valvoline – DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (Part No.798153)

DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart

from

$11.99
Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands of many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON*, DEXRON*-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Product Features:
  • Formulated with premium base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Top-Rated Fluid Brands For Your 1986 GMC S15

When it comes to finding the perfect Fluid for your 1986 GMC S15, 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 Valvoline and Prestone, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $9.99. Purchasing a Fluid from us here at Advance Auto Parts is a smart move for both you and your 1986 GMC S15, providing peace of mind with parts that meet or exceed OEM standards.

Popular Valvoline 1986 GMC S15 Fluids

If you’re looking for a top-quality Fluid for your 1986 GMC S15, Advance Auto Parts has exactly what you need with our selection of Valvoline Fluids. We have 3 Valvoline Fluids in stock for this fitment, all known for their durability and precision fit. With prices starting at just $11.49 and an average cost of $28.16, you’ll find the perfect Fluid for your needs and budget. Valvoline Fluids for the 1986 GMC S15 come highly rated, with over 1,397 customer reviews and an impressive average rating of 4.8 stars. Choosing a Valvoline Fluid from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
DEX/MERC Automatic Transmission Fluid, 1 Gallon
from $35.99
(17)
DEX/MERC Automatic Transmission Fluid, 1 Gallon
“Great product.”

Top-Quality Prestone 1986 GMC S15 Fluids

For those in search of a high-quality Fluid for their 1986 GMC S15, Advance Auto Parts offers a great selection of Prestone Fluids. With 3 Prestone 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 $9.99, with an average price of $10.82, giving you a range of options to suit your budget. Backed by over 389 customer ratings and an average rating of 4.8 stars, Prestone Fluids provide both reliability and excellent performance. Choosing a Prestone Fluid from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 oz.
from $9.99
(111)
Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 oz.
“UNIVERSAL TYPE, GOOD IN MOST CARS”

FAQs for 1986 GMC S15 Fluids

What are the best-selling Fluids for 1986 GMC S15s?

What’s the price range for 1986 GMC S15 Fluids?

The prices of Fluids for the 1986 GMC S15 range from $5.79 up to $36.99 for the most premium parts.

What is the average price of a Fluids Fluid for a 1986 GMC S15?

The average price for Fluids for the 1986 GMC S15 is $15.72. 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 GMC S15 model years?

Yes, we carry Fluids for 7 model years of GMC S15s between 1982 and 1990. The following model years are the most popular for Fluid purchases: 1990, 1989, 1988, 1987, 1985, 1984, 1983, and 1982.

Does Advance Auto Parts sell Fluids for any other 1986 GMC models?

Yes. We stock Fluids for 14 other popular 1986 GMC models. Some of the most popular are 1986 Jimmy Fluids, 1986 K2500 Fluids, 1986 C2500 Fluids, 1986 K1500 Fluids, and 1986 C1500 Fluids.

What are the top-rated Fluids that fit the 1986 GMC S15?

Based on 3,416 reviews by customers, our 1986 GMC S15 Fluids have an average customer rating of 5 stars. These are the highest-rated categories of Fluids for the 1986 GMC S15 and their top-rated products:

What types of Fluids do you sell for my 1986 GMC S15?

As of 4/10/25, these are some of the most in-demand types of Fluids for a 1986 GMC S15:

Can I get help with 1986 GMC S15 Fluid orders?

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

What is your return policy for GMC S15 Fluids?

Advance Auto Parts keeps returns simple. For new GMC S15 Fluids and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.