Allison 3000 Transmission Fluid Capacity

The Allison 3000 transmission fluid capacity is approximately 18.5 quarts (17.5 liters). The exact quantity of transmission fluid required depends on the type and size of the oil pan used in your vehicle. It is important to use only approved OEM-specified fluids, such as Dexron III/Mercon, when servicing an Allison 3000 series transmission.

If a different type of fluid is used other than those specifically approved for use with the Allison 3000 series transmissions, it could damage internal components and cause poor performance or failure of individual parts or even the entire system.

The Allison 3000 transmission fluid capacity is quite impressive, with a maximum capacity of up to 32 quarts. This ensures that the transmission can handle large loads and high-stress driving conditions without any issues, allowing you to get more miles out of your vehicle and extend its life. The fluid also helps keep the temperature consistent throughout the system so it operates efficiently during heavy-duty use.

With proper maintenance, this powerful transmission should last for many years to come.

Allison Automatic Filter & Fluid Change

What Transmission Fluid Does an Allison 3000 Take?

The Allison 3000 series transmission takes a specially formulated type of automatic transmission fluid (ATF) that is designed to meet the manufacturer’s specifications. The most common ATF used in an Allison 3000 is Dexron III/Mercon, which is a multi-purpose ATF with superior oxidation and thermal stability. It also provides excellent protection against wear and corrosion, as well as improved shifting performance over time.

In addition, some newer models of the Allison 3000 may require synthetic Automatic Transmission Fluid (Synthetic ATF). This type of fluid offers more consistent lubrication properties than conventional ATFs and can provide better protection for high temperatures and extreme operating conditions.

How Many Gallons of Transmission Fluid Does a Allison Transmission Take?

The amount of transmission fluid a Allison Transmission requires varies based on the model and size. Generally, it takes between 8 and 10 quarts (equivalent to 2-2.5 gallons) of transmission fluid for most models, though some larger trucks may require up to 12 quarts (3 gallons). It is highly recommended that you consult your vehicle’s service manual or contact a qualified mechanic in order to determine the exact quantity needed for your specific vehicle model.

What Kind of Transmission Fluid Does a Allison 3500 Take?

The Allison 3500 series transmissions take Dexron-VI Automatic Transmission Fluid (ATF). This is a synthetic, high performance ATF designed for use in vehicles with electronically controlled automatic transmissions. It has superior oxidation and thermal stability which helps to extend the life of the transmission as well as improved shift quality compared to other fluids.

Additionally, it offers excellent protection against wear, corrosion and foaming while also providing outstanding resistance to deposit formation. Be sure to only use approved fluids recommended by the manufacturer when servicing your Allison 3500 transmission.

How Often Should You Change Transmission Fluid in an Allison Transmission?

It is recommended that the transmission fluid in an Allison Transmission should be changed every 50,000 miles or according to the manufacturer’s recommendation. It is important to note that this figure can vary depending on usage and driving habits, so it may require change more often if the vehicle is used for frequent heavy loads or towing. Additionally, regular inspections of the fluid levels are also necessary in order ensure maximum performance and longevity of your Allison Transmission.

Allison 3000 Transmission Fluid Capacity


Allison 3000 Transmission Fluid Type

The Allison 3000 transmission requires special fluid, known as DEXRON III. This type of fluid is designed for use in automatic transmissions, and it helps to lubricate the components and protect them from wear and tear. It also helps keep temperatures low inside the transmission, ensuring a smooth shift when changing gears.

The fluid should be changed regularly according to manufacturer recommendations to ensure your transmission runs smoothly over time.

Allison 4000 Transmission Fluid Capacity

Allison Transmission Fluid Capacity Chart

This blog post will discuss the Allison Transmission Fluid Capacity Chart. This chart provides a comprehensive view of the fluid levels needed for optimal operation and performance of an Allison transmission. It is important to check your specific model to ensure that you use the correct amount of fluid, as it can vary between different models and options packages.

Additionally, this chart also includes information about filter changes and other maintenance items that should be performed on your transmission. By following these guidelines, you can help extend the life of your transmission and ensure smooth operation at all times.


The Allison 3000 transmission fluid capacity is important to know when servicing or repairing your vehicle. It is essential that the correct quantity and type of oil be used in order for the transmission to operate properly. Knowing the fluid capacity can help keep your vehicle running smoothly and efficiently, extending its life.

Furthermore, it will save you money on costly repairs by preventing premature wear and tear from incorrect levels or unsuitable fluids being used. Keeping up with routine maintenance using proper guidelines outlined in your user manual will ensure a long, reliable life for your Allison 3000 transmission system.


  • Alex Gearhart

    Alex Gearhart, an automotive expert specializing in transmissions, has over a decade of hands-on industry experience. With extensive knowledge in manual and automatic systems, Alex is passionate about educating car enthusiasts on vehicle maintenance. As the chief author at, Alex simplifies complex concepts for readers, helping them make informed decisions about their vehicles. Outside of work, Alex enjoys road trips, restoring classic cars, and exploring new automotive technologies.

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