1981 GMC G3500 Fluids and Chemicals

Essential 1981 GMC G3500 Fluids and Chemicals

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

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$12.49
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
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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

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$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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FRAM – Heavy Duty Antifreeze and Coolant: 50/50 Ready To Use, Universal , 1 Gallon (Part No.F201)

Heavy Duty Antifreeze and Coolant: 50/50 Ready To Use, Universal , 1 Gallon

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$15.99
Antifreeze Conventional Green 50/50 is an ethylene glycol-based product for use in car and light duty trucks that are already using a conventional coolant. The inhibitors prevent rust, corrosion, and provide freeze-up and boil-over protection. Prime Green 50/50 can be used to top-off cooling systems in vehicles using conventional AF/C, will not harm rubber parts, and meets ASTM D3306 and D4985 standards.

Product Features:
  • Low Silicate Formula.
  • When used as directed, will provide protection for a minimum of 1 year
  • Meets or exceeds ASTM requirements for cars, light duty trucks
  • Ready to Use formula (prediluted to a 50% Eg & 50% distilled water mix). Perfect for small volume top-off or complete drain and refill of the cooling system
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Prestone – Antifreeze and Coolant: 50/50 Ready To Use, Dex-Cool Compatible, 1 Gallon (Part No.AF850)

Antifreeze and Coolant: 50/50 Ready To Use, Dex-Cool Compatible, 1 Gallon

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$17.99
Prestone DEX-COOL (Ready to use) antifreeze+coolant is specially designed to work with these specific vehicles: All GM® vehicles 1995 & newer (GM approved), most Ford® vehicles 2011 – 2018 and most Chysler® vehicles 2013 & newer. Prestone’s Antifreeze+Coolants are designed to the highest standards using state of the art technology. These fluids are designed to not only manage the engine temp and protect from freezing up, they also protect the engine from rust & corrosion. This fluid is designed to last 5yrs / 150,000 miles.

Product Features:
  • Specially formulated to work with vehicles using orange colored fluid; HOAT. All GM 1995 & newer; Most Ford 2011-2018; Most Chrysler 2013 & newer
  • 5 Yr., 150,000 mile Extended life formula
  • Includes the Prestone protection package that protects against rust and corrosion of all cooling system metals, including aluminum.
  • Ready to Use formula. Perfect for small volume top-off or complete drain and refill of the cooling system.
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Prestone – MAX Antifreeze + Coolant: All Vehicles, Concentrate, 1 Gallon (Part No.AF2800)

MAX Antifreeze + Coolant: All Vehicles, Concentrate, 1 Gallon

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$18.99
All Anitfreeze + Coolants are not the same. Prestone® MAX antifreeze + coolant is GUARANTEED to provide MAXIMUM ENGINE PROTECTION in all Vehicle Makes, Models & Years. It delivers the widest range of temperature protection, industry leading protection from engine damaging rust & corrosion and the longest lasting protection in the industry. Trust Prestone for maximum, year-round engine protection.

Product Features:
  • Can top off or replace all antifreeze + coolant colors and formulations in all Vehcile Makes, Models & Years – Guaranteed.
  • Our patented, advance formula provides extreme temperature protection from the worst of winter deep freezes and scorching summer heat.
  • We deliver industry leading protection from engine damaging rust, corrosion & buildup. Prestone MAX completely stops the formation of rust & corrosion for better engine performance and longer engine life.
  • Prestone Max is guaranteed to protect your vehicle for 15+ years and/or 350,000 miles. It¿s the longest fluid life in the industry.
  • Prestone Max is guaranteed to protect your vehicle for 15+ years and/or 350,000 miles. It┐s the longest fluid life in the industry.
  • This is a Concentrated Formula. Must mix with high quality water to the desired ratio.
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Valvoline – High Mileage with MaxLife Technology Synthetic Blend 10W-30 Engine Oil: Maximize Engine Life, 5 Quart (Part No.881161)

High Mileage with MaxLife Technology Synthetic Blend 10W-30 Engine Oil: Maximize Engine Life, 5 Quart

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$29.99
75,000 miles is more than a mile marker. It’s a signal that your engine is ready for greater protection. That’s when you need Valvoline High Mileage with MaxLife Technology Motor Oil. Its exclusive formula is proven to maximize engine life in cars, trucks, and SUVs with over 75,000 miles. Our mixture is specially developed with a unique combination of synthetic and premium conventional oils to protect your high-mileage motor against wear, friction, heat, and deposits – the four major causes of engine breakdown and expensive repairs. Anti-wear additives defend critical engine components, advanced friction-fighting agents reduce heat and abrasion, added detergents clean the inside of your engine, and premium seal conditioners handle aging seals to prevent leaks. It fights sludge, corrosion and rust that can rob your engine of horsepower, fuel efficiency and longevity. From extreme temperatures and cold starts to stop-and-go traffic and frequent short trips, viscosity modifiers make sure the oil flows more easily, coats more completely, and resists thermal breakdown under even the most intense driving conditions. Its unique mixture curbs contaminants to keep high-mileage engines from burning and consuming oil that can foul spark plugs, creating higher emissions and causing your motor to run roughly.

Product Features:
  • Maxlife technology prevents engine breakdown with 40% better wear protection than the industry standard
  • Refresh aging seals and prevent leaks with seal conditioners
  • Reduce sludge, deposits, corrosion, and rust with added detergents – keep motors clean inside
  • Enhanced friction performance helps maximize power with advanced friction-fighting agents
  • Meets or exceeds all requirements of ilsac gf-6a, api sp, api sn with sn plus, api sn
  • MaxLife Technology: The exclusive formula of Valvoline High Mileage with MaxLife Technology Engine Oil is proven to maximize engine life in cars, trucks, and SUVs with over 75,000 miles.
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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

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

DEX/MERC Automatic Transmission Fluid, 1 Gallon

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

Friction Modifier / Posi Additive

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$17.99
Help keep positraction chatter down with posi additive from Yukon Gear & Axle.

Product Features:
  • positraction additive
  • For use in any clutch-style limited slip
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Valvoline – Full Synthetic High Mileage with MaxLife Technology 10W-30 Engine Oil: Maximizes Engine Life, 1 Quart (Part No.VV180)

Full Synthetic High Mileage with MaxLife Technology 10W-30 Engine Oil: Maximizes Engine Life, 1 Quart

from

$11.99
Upgrading your motor oil to Valvoline Full Synthetic High Mileage with MaxLife Technology can help you increase the longevity of your car, truck or SUV with over 75,000 miles. It’s proven to protect your high-mileage motor against wear, friction, heat, and deposits – the leading causes of engine breakdown and expensive repairs. Our exclusive formulation goes beyond industry standards to protect your engine. It’s fortified with enhanced wear additives and friction-fighting agents to safeguard critical engine components, extra detergents to clean inside your engine, and premium seal conditioners to restore aging seals and prevent leaks. Superior viscosity modifiers and high-quality base oils help it perform exceptionally in both high and low temperatures. Engineered with ingenuity, tested with tenacity, and proven with purpose, our formula was innovated in America with a century and a half of hands-on experience from the original motor oil brand.

Product Features:
  • Enhanced maxlife technology prevents engine breakdown in extreme conditions with 50% better wear protection than the industry standard
  • Treat and prevent leaks with premium seal conditioners to keep oil out of places it shouldn’t be
  • 25% extra defense against deposits, sludge, corrosion and rust via interior-cleansing detergents
  • Extreme temperature protection through our high-quality base oils and superior viscosity modifiers
  • Meets or exceeds all requirements of ilsac gf-6a, api sp, api sn with sn plus, api sn
  • 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 – the leading causes of engine breakdown
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Valvoline – Full Synthetic High Mileage with MaxLife Technology 10W-30 Engine Oil: Maximizes Engine Life, 5 Quart (Part No.813532)

Full Synthetic High Mileage with MaxLife Technology 10W-30 Engine Oil: Maximizes Engine Life, 5 Quart

from

$37.99
Upgrading your motor oil to Valvoline Full Synthetic High Mileage with MaxLife Technology can help you increase the longevity of your car, truck or SUV with over 75,000 miles. It’s proven to protect your high-mileage motor against wear, friction, heat, and deposits – the leading causes of engine breakdown and expensive repairs. Our exclusive formulation goes beyond industry standards to protect your engine. It’s fortified with enhanced wear additives and friction-fighting agents to safeguard critical engine components, extra detergents to clean inside your engine, and premium seal conditioners to restore aging seals and prevent leaks. Superior viscosity modifiers and high-quality base oils help it perform exceptionally in both high and low temperatures. Engineered with ingenuity, tested with tenacity, and proven with purpose, our formula was innovated in America with a century and a half of hands-on experience from the original motor oil brand.

Product Features:
  • Enhanced maxlife technology prevents engine breakdown in extreme conditions with 50% better wear protection than the industry standard
  • Treat and prevent leaks with premium seal conditioners to keep oil out of places it shouldn’t be
  • 25% extra defense against deposits, sludge, corrosion and rust via interior-cleansing detergents
  • Extreme temperature protection through our high-quality base oils and superior viscosity modifiers
  • Meets or exceeds all requirements of ilsac gf-6a, api sp, api sn with sn plus, api sn
  • MaxLife High Mileage Synthetic Engine Oil is specially designed for engines with over 75,000 miles, providing ultimate protection against wear, friction, heat, and deposits.
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Valvoline – High Mileage with MaxLife Technology Synthetic Blend 5W-30 Motor Oil: Maximize Engine Life, 5 Quart (Part No.881163)

High Mileage with MaxLife Technology Synthetic Blend 5W-30 Motor Oil: Maximize Engine Life, 5 Quart

from

$29.99
75,000 miles is more than a mile marker. It’s a signal that your engine is ready for greater protection. That’s when you need Valvoline High Mileage with MaxLife Technology Motor Oil. Its exclusive formula is proven to maximize engine life in cars, trucks, and SUVs with over 75,000 miles. Our mixture is specially developed with a unique combination of synthetic and premium conventional oils to protect your high-mileage motor against wear, friction, heat, and deposits – the four major causes of engine breakdown and expensive repairs. Anti-wear additives defend critical engine components, advanced friction-fighting agents reduce heat and abrasion, added detergents clean the inside of your engine, and premium seal conditioners handle aging seals to prevent leaks. It fights sludge, corrosion and rust that can rob your engine of horsepower, fuel efficiency and longevity. From extreme temperatures and cold starts to stop-and-go traffic and frequent short trips, viscosity modifiers make sure the oil flows more easily, coats more completely, and resists thermal breakdown under even the most intense driving conditions. Its unique mixture curbs contaminants to keep high-mileage engines from burning and consuming oil that can foul spark plugs, creating higher emissions and causing your motor to run roughly.

Product Features:
  • MAXLIFE TECHNOLOGY PREVENTS engine breakdown with 40% better wear protection than the industry standard
  • REFRESH AGING SEALS AND PREVENT LEAKS with seal conditioners
  • REDUCE SLUDGE, DEPOSITS, CORROSION, AND RUST with added detergents – keep motors clean inside
  • ENHANCED FRICTION PERFORMANCE HELPS MAXIMIZE POWER with advanced friction-fighting agents
  • MEETS OR EXCEEDS ALL REQUIREMENTS of ILSAC GF-6A, API SP, API SN with SN PLUS, API SN
  • MaxLife Technology: Valvoline High Mileage with MaxLife Technology is specially formulated to maximize engine life in vehicles with over 75,000 miles, providing superior protection against wear, friction, heat, and deposits.
  • Synthetic Blend Composition: This motor oil features a unique combination of synthetic and premium conventional oils, ensuring optimal performance and protection for high-mileage engines.
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Valvoline – DEXRON®-VI ATF Full Synthetic Automatic Transmission Fluid, 1 Gallon (Part No.883572)

DEXRON®-VI ATF Full Synthetic Automatic Transmission Fluid, 1 Gallon

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$38.49
Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, MERCON LV and Allison C-4.

Product Features:
  • Formulated with full-synthetic 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
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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

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$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
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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

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$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
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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
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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
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Powertrax – No-Slip Traction System (Part No.9204603500)

No-Slip Traction System

from

$565.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
  • Powertrax® = Extreme Traction Systems!
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    Powertrax – Grip LOK Traction System (Part No.LK436035)

    Grip LOK Traction System

    from

    $684.99
    For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!
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    Powertrax – Lock Right Locker (Part No.1950-LR)

    Lock Right Locker

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    $487.99
    The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!

    Product Features:
    • Powertrax® proves that you don’t have to choose between the superior traction of a locking differential and smooth handling and drivability of an open differential. Powertrax Lock-Right Lockers, No-Slip Traction Systems and GRIP limited slip differentials and lockers give you the best of both worlds!
    • The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
    • Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
    • Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
    • Powertrax® = Extreme Traction Systems!
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    Castrol – Transmax ATF / CVT Universal Automatic Transmission Fluid, 1 Gallon (Part No.15E0C8)

    Transmax ATF / CVT Universal Automatic Transmission Fluid, 1 Gallon

    from

    $25.99
    Castrol Transmax ATF/CVT Universal is a technologically advanced full-synthetic formulation designed to deliver excellent performance in most of the traditional stepped automatic transmissions and Continuously Variable Transmissions currently in use. It is also suitable for use in hybrids.

    Product Features:
    • Coverage of over 300 specs/95% of vehicles in operation
    • Broad scope of vehicle applications improves workshop efficiency and inventory management
    • Enhanced friction durability for smooth transmission performance
    • Superior high temperature protection to effectively resist oxidation
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    Valvoline – MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Gallon (Part No.773775)

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

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    $36.49
    Valvoline MaxLife Multi-Vehicle Automatic Transmission Fluid (ATF) is a full-synthetic formulation with advanced additives to prevent the major causes of transmission breakdown and help extend transmission life.  Developed to help prevent leaks, maximize transmission performance, reduce transmission wear, and maintain smooth shifting longer than conventional fluids. It is suitable for use in a broad range of ATF applications including most Ford, GM, Toyota, Honda, Nissan, Hyundai, BMW, Mercedes, Volvo, VW & Audi.

    Product Features:
    • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions.
    • Long life friction modifiers help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
    • High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks in high mileage transmissions
    • Developed with anti-wear technology to help improve transmission durability
    • Advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
    • Suitable for 95% of traditional ATFs including Dex/Merc, Mercon LV & Mercon V
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    Castrol – Domestic Multi-vehicle (ATF) Automatic Transmission Fluid (1 Quart) (Part No.15ADFA)

    Domestic Multi-vehicle (ATF) Automatic Transmission Fluid (1 Quart)

    from

    $7.99
    Castrol® Transmax DEX/MERC includes enhanced friction durability for smooth transmission performance. Designed for use in older Ford and GM vehicles.

    Product Features:
    • Enhanced friction durability for smooth transmission performance
    • Meets DEXRON®-III H requirements; also satisfies requirements of DEXRON®, DEXRON®-III, IIE, and II; do not use this ATF in applications calling for DEXRON®-VI
    • Meets MERCON® requirements; may also be used in power steering applications where MERCON® is required; use Castrol Type F ATF in applications calling for Type F
    • Do not use this ATF in applications calling for MERCON® V or MERCON® SP
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    Castrol – BP Petroleum Autran Syn 295 Synthetic Automatic Transmission Fluid, 1 Gallon (Part No.709732)

    BP Petroleum Autran Syn 295 Synthetic Automatic Transmission Fluid, 1 Gallon

    from

    $71.99
    Full-Synthetic; Heavy Duty Automatic Transmission; BP Autran Syn-295 is a full-synthetic, heavy duty automatic transmission fluid approved for use under Allison TES-295. It is formulated to maintain its stability, even under the most severe operating conditions.

    Product Features:
    • Formulated with high viscosity index 100% synthetic base fluids and specific additives in order to exceed Allison requirements and provide outstanding wear protection
    • Keeps transmissions cooler, offering excellent shear stability, low oxidation and high heat capacity
    • Provides superior high/low temperature performance due to high VI synthetic base fluids and has excellent corrosion and foaming resistance
    • BP Autran Syn-295 also has an Allison TES-468 approval for use in Allison Hybrid Electric Drive Transmissions
    • Other OEM approvals include Allison C-4, Voith and ZF transmissions
    • BP Autran Syn-295 is an ideal transmission fluid for light duty application vehicles, such as:
    • Inter/intra-city buses & school buses
    • Emergency vehicles
    • Delivery trucks & vans
    • Recreational vehicles & motor homes
    • Refuse vehicles
    • On/off-highway vehicles
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    ATP – Auto Trans Fluid (Part No.AT-216)

    Auto Trans Fluid

    from

    $22.99
    Product Features:
    • Fully Synthetic
    • Advance transmission protection from standard to sever duty
    • Resist thermal breakdown, oxidation, varnish and sludge
    See More

    Castrol – Transmax ATF Full Synthetic Multi-Vehicle Automatic Transmission Fluid (1 Quart) (Part No.152A76)

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

    from

    $12.29
    Automatic transmission fluid is a technologically advanced, low viscosity formulation specially designed to deliver performance and maximum fuel efficiency for modern automatic transmissions.

    Product Features:
    • Full Synthetic, low viscosity formulation
    • OEM approved and licensed by Ford (MERCON® LV) and GM (DEXRON® -VI)
    • Low viscosity formula for maximum fuel efficiency in modern automatic transmissions
    • Enhanced friction durability for smooth transmission performance
    • Superior high temperature protection to effectively resist oxidation
    • Unsurpassed protection against copper corrosion
    • Industry Specifications and OEM Approvals: JASO-1A
    • Licensed and approved for use in: All GM vehicles (DEXRON®-VI, All previous DEXRON®); All Ford vehicles which specify Mercon® LV
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    FRAM – Full Synthetic Dexron VI Automatic Transmission Fluid: 1 Quart (Part No.F426)

    Full Synthetic Dexron VI Automatic Transmission Fluid: 1 Quart

    from

    $11.79
    FRAM DEXRON®-VI FULL SYNTHETIC ATF represents the latest technology in full  synthetic automatic transmission fluids. This product is designed for the newest  generation of highly efficient transmissions now being installed in most vehicles, and is  DEXRON®-VI licensed by GM and meets JASO 1A performance requirements. It is a fuel  efficient choice for older models as well, such as those currently using DEXRON®-III. FRAM DEXRON®-VI FULL SYNTHETIC ATF is recommended for use in all GM  DEXRON® applications and in transmissions applications calling for Toyota WS, Nissan  Matic J and Matic S, Ford part numbers XT-10-QLV and XT-6-QSP, Honda Z-1 and DW 1, and Hyundai SP-VI. Check owner’s manual for specific recommendations.

    Product Features:
    • Outstanding resistance to oxidative and thermal breakdown.
    • Exceptional low temperature fluidity.
    • Excellent anti-wear properties.
    • Excellent gear shift quality throughout service life.
    • ALWAYS REFER TO YOUR VEHICLES OPERATING MANUAL TO SELECT THE CORRECT GRADE FLUID FOR YOUR TRANSMISSION
    • TRANSMISSION FLUIDS ALSO APPLICABLE IN POWER STEERING UNITS; CHECK OWNERS’ MANUAL
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    Castrol – Transmax ATF High Mileage Automatic Transmission Fluid: 1 Gallon (Part No.1599F1)

    Transmax ATF High Mileage Automatic Transmission Fluid: 1 Gallon

    from

    $49.99
    Castrol Transmax High Mileage is specially formulated for transmissions with over 75,000 miles to deliver superior performance for maximum transmission life. It features additional seal conditioners to help stop leaks and cleaning agents to reduce varnish and deposit formation. It also protects against clutch wear and restores smooth shifting and can be used in a wide variety of specifications including DEXRON®-IIIH, MERCON® and JASO-1A.

    Product Features:
    • Additional seal conditioners help stop leaks.
    • Extra cleaning agents reduce varnish and sludge formation.
    • Protects against clutch wear and restores smooth shifting.
    • Recommended for use in new & older vehicles that require:
    See More

    1981 GMC G3500 Fluids and Chemicals

    You count on your 1981 GMC G3500 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Fluids and Chemicals. With 36 Fluids and Chemicals ranging in price from $5.99 to $684.99, you’re sure to find everything you need for your 1981 GMC G3500.

    Brands matter. If you want to shop a specific Fluids and Chemicals brand, we stock 8 different brands like Prestone, Valvoline, and Fram. 1981 GMC G3500 Fluids and Chemicals start as low as $5.99!

    One of the best ways to find top quality OEM or aftermarket Fluids and Chemicals is by asking professionals. Short of that, you can shop with confidence thanks to our 15,364 extensive product reviews on 1981 GMC G3500 Fluids and Chemicals. Some of the top-rated Fluids and Chemicals products we carry are High Mileage with MaxLife Technology Synthetic Blend 10W-30 Engine Oil: Maximize Engine Life, 5 Quart with 4.8 stars and Full Synthetic High Mileage with MaxLife Technology 10W-30 Engine Oil: Maximizes Engine Life, 5 Quart with 4.9 stars.

    Did we mention you can order your Fluids and Chemicals from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Fluids and Chemicals inventory for your 1981 GMC G3500 below to get started!

    Top-Rated Fluids and Chemicals Brands For Your 1981 GMC G3500

    Trusted Fluids and Chemicals OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1981 GMC G3500 running right for years to come. In our inventory you’ll find brands like Prestone, Valvoline, Fram, and even more.

    Popular Castrol Fluids and Chemicals

    You’ll find popular Castrol brand products across Transmission Fluids. All are waiting to get your 1981 GMC G3500 back on the road. Some of the top-rated Castrol products in these categories are:
    Transmax ATF DEXRON®-VI Automatic Transmission Fluid 1 Quart
    from $14.79
    (118)
    Transmax ATF DEXRON®-VI Automatic Transmission Fluid 1 Quart
    Automatic Transmission Fluids
    Domestic Multi-vehicle (ATF) Automatic Transmission Fluid (1 Quart)
    from $7.99
    (8)
    Domestic Multi-vehicle (ATF) Automatic Transmission Fluid (1 Quart)
    Automatic Transmission Fluids

    Top-Rated Fluids and Chemicals


    If are what you’re looking for, our inventory holds plenty. We stock brand Fluids and Chemicals for your 1981 GMC G3500, and some of our most reviewed parts include:
    Advanced 5W-30 Full Synthetic Motor Oil, 1 Quart
    from $11.99
    (1809)
    Advanced 5W-30 Full Synthetic Motor Oil, 1 Quart
    Transfer Case Fluids

    FAQs for 1981 GMC G3500 Fluids and Chemicals

    What are the most purchased Fluids and Chemicals for the 1981 GMC G3500?

    Out of 36 Fluids and Chemicals for the 1981 GMC G3500, the most popular in our inventory are:
    Antifreeze and Coolant: 50/50 Ready To Use, Universal, Protects Against Corrosion, 1 Gallon
    from $14.99
    This product is not rated
    Antifreeze and Coolant: 50/50 Ready To Use, Universal, Protects Against Corrosion, 1 Gallon
    Engine Coolant and Antifreeze
    Antifreeze and Coolant: Concentrate, Universal, Protects Against Buildup And Rust, 1 Gallon
    from $17.99
    This product is not rated
    Antifreeze and Coolant: Concentrate, Universal, Protects Against Buildup And Rust, 1 Gallon
    Engine Coolant and Antifreeze

    What are the top-rated 1981 GMC G3500 Fluids and Chemicals?

    Top-rated Fluids and Chemicals for your 1981 GMC G3500 based on customer reviews/ratings are: