1981 Mercedes-Benz 300D Fluids

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Keep Your 1981 Mercedes-Benz 300D in Top Shape with Quality Fluids

Whether you’re repairing or upgrading your Fluid, using high-quality parts is key to keeping your 1981 Mercedes-Benz 300D looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Hydraulic Fluids, 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 $6.99 with an average 4.8 star rating. Valvoline offer similar pricing and quality, backed by strong customer feedback. With over 649 reviews and a solid 4.8 star average, you can shop with confidence knowing other Mercedes-Benz 300D owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1981 Mercedes-Benz 300D Fluid at Advance Auto Parts is around $27.56, with a range that starts at $6.99 and goes up to $126.99. With 15 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like Prestone Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 32 Oz., AS263Y, Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 Oz., AS261Y/1, and Prestone DOT 5.1 Brake Fluid: Synthetic, High Grade, High Performance Formula For Extreme Braking, 12 oz., AS820-6 start at just $13.99 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 1981 Mercedes-Benz 300D in peak condition, inside and out.

Essential 1981 Mercedes-Benz 300D Fluids

Valvoline – Valvoline MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon, 773775 (Part No.773775)

Valvoline MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon, 773775

from

$39.99
Valvoline MaxLife Multi-Vehicle 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. Volume: 1 gallon.
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Valvoline – Valvoline MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart, 904857 (Part No.904857)

Valvoline MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart, 904857

from

$13.99
Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the No. 1 ATF product, suitable for use in millions of vehicles. 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 recommended for use in: GM DEXRON-II, DEXRON-III, DEXRON-VI; Ford MERCON LV; and JASO M315-2013 1A-LV. Volume: 1 quart.
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Pentosin – Pentosin Hydraulic Fluid Chf11S 1L, 1405116 (Part No.1405116)

Pentosin Hydraulic Fluid Chf11S 1L, 1405116

from

$44.99
Pentosin CHF 11S is a synthetic high performance hydraulic fluid for life-time application in modern vehicle aggregates. Pentosin CHF 11S is especially designed for hydraulics in the automotive industry with the highest technical requirements such as in: power steering, level control, shock absorber, hydro-pneumatic suspension, stability and traction control, hydraulics for convertible tops, central lock systems, etc. It is suitable for all extreme conditions and guarantees full performance from -40C to over 130C system temperature.
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Castrol – Castrol Autran Syn-295 Synthetic Transmission Fluid, 1 Gallon, 709732 (Part No.709732)

Castrol Autran Syn-295 Synthetic Transmission Fluid, 1 Gallon, 709732

from

$71.99
Autran Syn-295 Synthetic Transmission Fluid is a premium full-synthetic solution designed for heavy-duty automatic transmissions, meeting the rigorous Allison TES-295 and TES-468 standards. Engineered with high-viscosity index synthetic base fluids and advanced additives, it delivers exceptional wear protection, superior high and low-temperature performance, and outstanding shear stability. This fluid keeps transmissions cooler, resists oxidation, and offers excellent corrosion and foaming resistance, ensuring long-lasting reliability even under extreme operating conditions. Compatible with a wide range of OEM systems, including Allison C-4, Voith, and ZF transmissions, it is ideal for light-duty applications such as buses, emergency vehicles, delivery trucks, motor homes, and more. Whether for on- or off-highway use, this 1-gallon solution provides unmatched durability and performance, making it a trusted choice for demanding environments. Volume: 1 gallon.
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Prestone – Prestone MAX DOT 4 Brake Fluid, Synthetic, Highest Grade, 75,000 Mile, 12 fl. oz., AS815 (Part No.AS815)

Prestone MAX DOT 4 Brake Fluid, Synthetic, Highest Grade, 75,000 Mile, 12 fl. oz., AS815

from

$9.99
Prestone® DOT 4 Motor Vehicle Brake Fluid delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 4. 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 4 braking systems (ABS, disc or drum) and can mix with any DOT 4 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.
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Prestone – Prestone MAX DOT 4 Brake Fluid, Synthetic, Highest Grade, 75,000 Mile, 32 fl. oz., AS810 (Part No.AS810)

Prestone MAX DOT 4 Brake Fluid, Synthetic, Highest Grade, 75,000 Mile, 32 fl. oz., AS810

from

$17.99
Prestone MAX DOT 4 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 75,000 mile fluid life, our longest life fluid has 1.5X more miles between replacement than regular Prestone DOT 3. Prestone MAX has superior performance in severe braking conditions when compared to regular Prestone DOT 4, 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 4 is safe to use in all DOT 4 braking systems, ABS, disc or drum, and can mix with any DOT 4 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 4. 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.
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Pentosin – Pentosin Super Dot 4 5L, 1204204 (Part No.1204204)

Pentosin Super Dot 4 5L, 1204204

from

$72.99
Pentosin Super DOT 4 is a brake fluid of superior quality for universal use in modern brake systems and ideal for vehicles with ABS systems. Pentosin Super DOT 4 offers safety against vapor lock; it has excellent resistance to absorbing and retaining water and provides superior corrosion resistance.
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Prestone – Prestone DOT 4 Brake Fluid: Synthetic, High Grade, Prevents Overheating & Brake Fade, 50k miles, 32 oz., AS801Y (Part No.AS801Y)

Prestone DOT 4 Brake Fluid: Synthetic, High Grade, Prevents Overheating & Brake Fade, 50k miles, 32 oz., AS801Y

from

$15.99
Prestone DOT 4 Motor Vehicle Brake Fluid delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 4. 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 4 braking systems (ABS, disc or drum) and can mix with any DOT 4 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.
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Prestone – Prestone DOT 4 Brake Fluid: Synthetic, High Grade, 50,000 Mile, 12 fl. oz., AS800Y (Part No.AS800Y)

Prestone DOT 4 Brake Fluid: Synthetic, High Grade, 50,000 Mile, 12 fl. oz., AS800Y

from

$9.99
Prestone DOT 4 Motor Vehicle Brake Fluid delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 4. 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 4 braking systems (ABS, disc or drum) and can mix with any DOT 4 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.
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Prestone – Prestone DOT 5.1 Brake Fluid: Synthetic, High Grade, High Performance Formula For Extreme Braking, 12 oz., AS820-6 (Part No.AS820-6)

Prestone DOT 5.1 Brake Fluid: Synthetic, High Grade, High Performance Formula For Extreme Braking, 12 oz., AS820-6

from

$18.99
Prestone DOT 5.1 Motor Vehicle Brake Fluid delivers enhanced performance vs. DOT standards and is designed to handle the most extreme braking situations. Prestone DOT 5.1 is a high performance formula for extreme braking situations like racing. Formulated to protect against overheating and brake fade with a formula that exceeds DOT standards. This synthetic extended life fluid starts with higher dry boiling point vs. DOT standard protecting against performance decline due to water absorption. This formula is safe to use in all DOT 5.1 braking systems, ABS, disc or drum, and can mix with any DOT 5.1 fluid. 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.
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Prestone – Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 Oz., AS261Y/1 (Part No.AS261Y/1)

Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 Oz., AS261Y/1

from

$13.99
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.
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Pentosin – Pentosin Atf 1 1L, 1058107 (Part No.1058107)

Pentosin Atf 1 1L, 1058107

from

$28.49
Pentosin ATF 1 is a fully synthetic high performance Automatic Transmission Fluid (ATF) for life-time application in automatic gear boxes. Pentosin ATF 1 is formulated by means of the best commercially available synthetic base oils and additive components. A high performance shear stable VI-Improver plus modern antiwear chemistry and friction modifiers guarantee a sound stable friction performance in modern automatic transmissions equipped with an electronically controlled converter clutch.
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Prestone – Prestone MAX Power Steering Fluid: European Vehicles, With Stop Leak, Enhances System Life, 100k miles, 12 oz., AS278 (Part No.AS278)

Prestone MAX Power Steering Fluid: European Vehicles, With Stop Leak, Enhances System Life, 100k miles, 12 oz., AS278

from

$14.99
Prestone MAX European 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 European vehicle manufacturers: Audi, BMW, Jaguar, Mini, Porsche, Mercedes, Saab, Volvo, Volkswagen 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.
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Lube Gard – Lube Gard Complete Synthetic Power Steering Fluid Multi-Vehicle Formula, 32 oz., 23232 (Part No.23232)

Lube Gard Complete Synthetic Power Steering Fluid Multi-Vehicle Formula, 32 oz., 23232

from

$21.49
Complete Synthetic Power Steering Fluid formulated for use in American, European and Asian Vehicels. Electric Power Steering Fluid Compatible.
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Prestone – Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 12 Oz., AS260 (Part No.AS260)

Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 12 Oz., AS260

from

$6.99
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.
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Pentosin – Pentosin Automatic Transmission Fluid – 5 Liter Bottle, 1058207 (Part No.1058207)

Pentosin Automatic Transmission Fluid - 5 Liter Bottle, 1058207

from

$131.99
Pentosin Automatic Transmission Fluid – 5 Liter Bottle, 1058207.
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Prestone – Prestone Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 32 Oz., AS263Y (Part No.AS263Y)

Prestone Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 32 Oz., AS263Y

from

$15.99
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.
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Valvoline – Valvoline MaxLife Multi-Vehicle Full Synthetic Automatic Transmission Fluid (ATF), 5 Gallon Box, 881051 (Part No.881051)

Valvoline MaxLife Multi-Vehicle Full Synthetic Automatic Transmission Fluid (ATF), 5 Gallon Box, 881051

from

$126.99
Valvoline MaxLife Multi-Vehicle 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. Recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, Ford MERCON LV, Toyota/Lexus Type T, T-II, T-IV, WS, Honda/Acura, ATF-Z1, Nissan/Infiniti Matic-D, Matic-J, Matric-K, Matic-S, Hyundai/Kia SP-II, SP-III, SP-IV, SPH-IV, BMW 7045E, ETL 8072B, LA2634, LT71141, Allison C-4, Mercedes Benz NAG-1, Volvo 1161521, 1161540, 97340, 1273.41, and VW/Audi G-052-025-A2, G-052-162-A1. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid. CURRENTLY UNABLE TO SHIP THIS PRODUCT TO CUSTOMERS LOCATED IN CALIFORNIA. Volume: 5 gallons.
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Shell – Shell T4 Triple Protection 15W-40 Synthetic Blend Diesel Engine Oil, 2.5 Gallon, 550045127 (Part No.550045127)

Shell T4 Triple Protection 15W-40 Synthetic Blend Diesel Engine Oil, 2.5 Gallon, 550045127

from

$64.99
T4 Triple Protection 15W-40 Synthetic Blend Diesel Engine Oil delivers advanced performance for diesel engines, combining cutting-edge technology with the trusted durability of Triple Protection®. This synthetic blend is engineered to provide enhanced protection against oxidation, wear, and deposits, ensuring your engine stays cleaner and operates more efficiently. Designed for heavy-duty applications, it sustains emission control system durability in particulate filters and after-treatment systems, making it ideal for modern diesel engines. With its SAE 15W-40 weight, this oil adapts to demanding driving conditions, offering reliable performance and long-lasting protection. Perfect for those who rely on their engines for hard work, this 2.5-gallon solution ensures value and peace of mind with every use. Volume: 5 gallons.
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Shell – Shell T4 Triple Protection 15W-40 Diesel Engine Oil, Enhanced Oxidation Protection, 55 Gallon, 550045148 (Part No.550045148)

Shell T4 Triple Protection 15W-40 Diesel Engine Oil, Enhanced Oxidation Protection, 55 Gallon, 550045148

from

$1221.99
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. Volume: 55 gallons.
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Castrol – Castrol EDGE Euro 5W-30 A3/B4 Advanced Full Synthetic Motor Oil, 1 Quart, 15D452 (Part No.15D452)

Castrol EDGE Euro 5W-30 A3/B4 Advanced Full Synthetic Motor Oil, 1 Quart, 15D452

from

$13.99
Castrol EDGE Euro 5W-30 is an advanced full synthetic motor oil engineered to exceed manufacturer test limits ensuring the highest level of protection and maximum performance for European cars. European car manufacturers create unique motor oil specifications to ensure the lubricant can withstand the intense pressure, heat and friction generated in a high output engine. To ensure compliance, rigorous engine tests are developed, with approval granted only when the oil achieves the minimum values required in each test. Castrol EDGE Euro Car fluids are formulated to exceed these requirements and deliver maximum protection and performance. Volume: 1 quart.
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Shell – Shell T4 Triple Protection 15W-40 Diesel Engine Oil, Enhanced Oxidation Protection, 5 Gallon, 550045128 (Part No.550045128)

Shell T4 Triple Protection 15W-40 Diesel Engine Oil, Enhanced Oxidation Protection, 5 Gallon, 550045128

from

$119.99
T4 Triple Protection 15W-40 Diesel Engine Oil delivers advanced performance for hardworking diesel engines, combining cutting-edge technology with proven reliability. This synthetic blend oil is specifically engineered for diesel engines, offering enhanced protection against oxidation, wear, and deposits to ensure optimal cleanliness and efficiency. Its improved formula sustains emission control system durability, making it ideal for vehicles equipped with particulate filters and after-treatment systems. Designed to adapt to demanding driving conditions, this 15W-40 oil provides superior protection for heavy-duty applications while promoting smoother operation and extended engine life. With a 5-gallon capacity, it delivers exceptional value for fleet operators and individual users seeking dependable performance and long-term durability. Volume: 5 gallons.
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Most Popular Hydraulic Fluid for 1981 Mercedes-Benz 300Ds

Enhance your 1981 Mercedes-Benz 300D with this popular Hydraulic Fluid we have in stock, for $71.99.

Castrol – Castrol Autran Syn-295 Synthetic Transmission Fluid, 1 Gallon, 709732 (Part No.709732)

Castrol Autran Syn-295 Synthetic Transmission Fluid, 1 Gallon, 709732

from

$71.99
Autran Syn-295 Synthetic Transmission Fluid is a premium full-synthetic solution designed for heavy-duty automatic transmissions, meeting the rigorous Allison TES-295 and TES-468 standards. Engineered with high-viscosity index synthetic base fluids and advanced additives, it delivers exceptional wear protection, superior high and low-temperature performance, and outstanding shear stability. This fluid keeps transmissions cooler, resists oxidation, and offers excellent corrosion and foaming resistance, ensuring long-lasting reliability even under extreme operating conditions. Compatible with a wide range of OEM systems, including Allison C-4, Voith, and ZF transmissions, it is ideal for light-duty applications such as buses, emergency vehicles, delivery trucks, motor homes, and more. Whether for on- or off-highway use, this 1-gallon solution provides unmatched durability and performance, making it a trusted choice for demanding environments. Volume: 1 gallon.
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Best-Selling 1981 Mercedes-Benz 300D Transfer Case Fluid

Upgrade your 300D with our best-selling Transfer Case Fluid.

Castrol – Castrol EDGE Euro 5W-30 A3/B4 Advanced Full Synthetic Motor Oil, 1 Quart, 15D452 (Part No.15D452)

Castrol EDGE Euro 5W-30 A3/B4 Advanced Full Synthetic Motor Oil, 1 Quart, 15D452

from

$13.99
Castrol EDGE Euro 5W-30 is an advanced full synthetic motor oil engineered to exceed manufacturer test limits ensuring the highest level of protection and maximum performance for European cars. European car manufacturers create unique motor oil specifications to ensure the lubricant can withstand the intense pressure, heat and friction generated in a high output engine. To ensure compliance, rigorous engine tests are developed, with approval granted only when the oil achieves the minimum values required in each test. Castrol EDGE Euro Car fluids are formulated to exceed these requirements and deliver maximum protection and performance. Volume: 1 quart.
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Top-Quality Brake Fluids for 1981 Mercedes-Benz 300Ds

Choose a high-quality OEM or aftermarket Brake Fluid for Mercedes-Benz 300Ds and enjoy top-notch performance from $9.99.

Prestone – Prestone DOT 5.1 Brake Fluid: Synthetic, High Grade, High Performance Formula For Extreme Braking, 12 oz., AS820-6 (Part No.AS820-6)

Prestone DOT 5.1 Brake Fluid: Synthetic, High Grade, High Performance Formula For Extreme Braking, 12 oz., AS820-6

from

$18.99
Prestone DOT 5.1 Motor Vehicle Brake Fluid delivers enhanced performance vs. DOT standards and is designed to handle the most extreme braking situations. Prestone DOT 5.1 is a high performance formula for extreme braking situations like racing. Formulated to protect against overheating and brake fade with a formula that exceeds DOT standards. This synthetic extended life fluid starts with higher dry boiling point vs. DOT standard protecting against performance decline due to water absorption. This formula is safe to use in all DOT 5.1 braking systems, ABS, disc or drum, and can mix with any DOT 5.1 fluid. 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.
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Prestone – Prestone MAX DOT 4 Brake Fluid, Synthetic, Highest Grade, 75,000 Mile, 32 fl. oz., AS810 (Part No.AS810)

Prestone MAX DOT 4 Brake Fluid, Synthetic, Highest Grade, 75,000 Mile, 32 fl. oz., AS810

from

$17.99
Prestone MAX DOT 4 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 75,000 mile fluid life, our longest life fluid has 1.5X more miles between replacement than regular Prestone DOT 3. Prestone MAX has superior performance in severe braking conditions when compared to regular Prestone DOT 4, 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 4 is safe to use in all DOT 4 braking systems, ABS, disc or drum, and can mix with any DOT 4 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 4. 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.
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Prestone – Prestone DOT 4 Brake Fluid: Synthetic, High Grade, Prevents Overheating & Brake Fade, 50k miles, 32 oz., AS801Y (Part No.AS801Y)

Prestone DOT 4 Brake Fluid: Synthetic, High Grade, Prevents Overheating & Brake Fade, 50k miles, 32 oz., AS801Y

from

$15.99
Prestone DOT 4 Motor Vehicle Brake Fluid delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 4. 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 4 braking systems (ABS, disc or drum) and can mix with any DOT 4 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.
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Prestone – Prestone DOT 4 Brake Fluid: Synthetic, High Grade, 50,000 Mile, 12 fl. oz., AS800Y (Part No.AS800Y)

Prestone DOT 4 Brake Fluid: Synthetic, High Grade, 50,000 Mile, 12 fl. oz., AS800Y

from

$9.99
Prestone DOT 4 Motor Vehicle Brake Fluid delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 4. 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 4 braking systems (ABS, disc or drum) and can mix with any DOT 4 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.
See More

Prestone – Prestone MAX DOT 4 Brake Fluid, Synthetic, Highest Grade, 75,000 Mile, 12 fl. oz., AS815 (Part No.AS815)

Prestone MAX DOT 4 Brake Fluid, Synthetic, Highest Grade, 75,000 Mile, 12 fl. oz., AS815

from

$9.99
Prestone® DOT 4 Motor Vehicle Brake Fluid delivers enhanced performance vs. DOT standards, benefitting all vehicles calling for DOT 4. 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 4 braking systems (ABS, disc or drum) and can mix with any DOT 4 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.
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Top Picks for 1981 Mercedes-Benz 300D Power Steering Fluids

Invest in one of our 6 durable Power Steering Fluids for your 1981 Mercedes-Benz, knowing you’re getting trusted brands and expert craftsmanship.

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

Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 Oz., AS261Y/1

from

$13.99
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.
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Prestone – Prestone Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 32 Oz., AS263Y (Part No.AS263Y)

Prestone Power Steering Fluid: All Vehicles, With Stop Leak, Restores & Conditions Seals, 50k miles, 32 Oz., AS263Y

from

$15.99
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.
See More

Prestone – Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 12 Oz., AS260 (Part No.AS260)

Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 12 Oz., AS260

from

$6.99
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.
See More

Valvoline – Valvoline MaxLife Multi-Vehicle Full Synthetic Automatic Transmission Fluid (ATF), 5 Gallon Box, 881051 (Part No.881051)

Valvoline MaxLife Multi-Vehicle Full Synthetic Automatic Transmission Fluid (ATF), 5 Gallon Box, 881051

from

$126.99
Valvoline MaxLife Multi-Vehicle 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. Recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, Ford MERCON LV, Toyota/Lexus Type T, T-II, T-IV, WS, Honda/Acura, ATF-Z1, Nissan/Infiniti Matic-D, Matic-J, Matric-K, Matic-S, Hyundai/Kia SP-II, SP-III, SP-IV, SPH-IV, BMW 7045E, ETL 8072B, LA2634, LT71141, Allison C-4, Mercedes Benz NAG-1, Volvo 1161521, 1161540, 97340, 1273.41, and VW/Audi G-052-025-A2, G-052-162-A1. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid. CURRENTLY UNABLE TO SHIP THIS PRODUCT TO CUSTOMERS LOCATED IN CALIFORNIA. Volume: 5 gallons.
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Lube Gard – Lube Gard Complete Synthetic Power Steering Fluid Multi-Vehicle Formula, 32 oz., 23232 (Part No.23232)

Lube Gard Complete Synthetic Power Steering Fluid Multi-Vehicle Formula, 32 oz., 23232

from

$21.49
Complete Synthetic Power Steering Fluid formulated for use in American, European and Asian Vehicels. Electric Power Steering Fluid Compatible.
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Prestone – Prestone MAX Power Steering Fluid: European Vehicles, With Stop Leak, Enhances System Life, 100k miles, 12 oz., AS278 (Part No.AS278)

Prestone MAX Power Steering Fluid: European Vehicles, With Stop Leak, Enhances System Life, 100k miles, 12 oz., AS278

from

$14.99
Prestone MAX European 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 European vehicle manufacturers: Audi, BMW, Jaguar, Mini, Porsche, Mercedes, Saab, Volvo, Volkswagen 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.
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Our Top-Rated AWD Fluid for 1981 Mercedes-Benz 300Ds

Make a smart move for your 1981 Mercedes-Benz 300D with our AWD Fluid for $39.99.

Valvoline – Valvoline MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon, 773775 (Part No.773775)

Valvoline MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon, 773775

from

$39.99
Valvoline MaxLife Multi-Vehicle 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. Volume: 1 gallon.
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Top-Rated Fluid Brands For Your 1981 Mercedes-Benz 300D

When it comes to finding the perfect Fluid for your 1981 Mercedes-Benz 300D, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 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 $6.99. Purchasing a Fluid from us here at Advance Auto Parts is a smart move for both you and your 1981 Mercedes-Benz 300D, providing peace of mind with parts that meet or exceed OEM standards.

Popular Prestone 1981 Mercedes-Benz 300D Fluids

If you’re looking for a top-quality Fluid for your 1981 Mercedes-Benz 300D, Advance Auto Parts has exactly what you need with our selection of Prestone Fluids. We have 3 Prestone Fluids in stock for this fitment, all known for their durability and precision fit. With prices starting at just $6.99 and an average cost of $12.32, you’ll find the perfect Fluid for your needs and budget. Prestone Fluids for the 1981 Mercedes-Benz 300D come highly rated, with over 203 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.
Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 Oz., AS261Y/1
from $13.99
(111)
Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 32 Oz., AS261Y/1
“It is what it is, and does what it is supposed to do.”
Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 12 Oz., AS260
from $6.99
(15)
Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 12 Oz., AS260
“Works for a mercedes benz so that’s great.”

Top-Quality Valvoline 1981 Mercedes-Benz 300D Fluids

For those in search of a high-quality Fluid for their 1981 Mercedes-Benz 300D, 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 $39.99, giving you a range of options to suit your budget. Backed by over 446 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 1981 Mercedes-Benz 300D Fluids

What are the best-selling Fluids for 1981 Mercedes-Benz 300Ds?

What’s the price range for 1981 Mercedes-Benz 300D Fluids?

The prices of Fluids for the 1981 Mercedes-Benz 300D range from $6.99 up to $126.99 for the most premium parts.

What is the average price of a Fluid for a 1981 Mercedes-Benz 300D?

The average price for Fluids for the 1981 Mercedes-Benz 300D is $27.56. 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 Mercedes-Benz 300D model years?

Yes, we carry Fluids for 15 model years of Mercedes-Benz 300Ds between 1958 and 1993. The following model years are the most popular for Fluid purchases: 1993, 1992, 1991, 1990, 1987, 1980, 1979, 1978, and 1977.

Does Advance Auto Parts sell Fluids for any other 1981 Mercedes-Benz models?

Yes. We stock Fluids for 9 other popular 1981 Mercedes-Benz models. Some of the most popular are 1981 380SEL Fluids, 1981 300SD Fluids, 1981 280E Fluids, 1981 280CE Fluids, and 1981 240D Fluids.

What are the top-rated Fluids that fit the 1981 Mercedes-Benz 300D?

The one 1981 Mercedes-Benz 300D Fluid we have in stock is the Prestone Power Steering Fluid: All Vehicles, Anti-Wear Protection, 50k miles, 12 Oz., AS260. It is rated 4.5 stars and costs $6.99.

What types of Fluids do you sell for my 1981 Mercedes-Benz 300D?

As of 8/2/26, these are some of the most in-demand types of Fluids for a 1981 Mercedes-Benz 300D:

Can I get help with 1981 Mercedes-Benz 300D Fluid orders?

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

What is your return policy for Mercedes-Benz 300D Fluids?

Advance Auto Parts keeps returns simple. For new Mercedes-Benz 300D Fluids and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.