Loading

How many quarts of transmission fluid does a 2008 Toyota Avalon take?

The automatic transmission in a 2008 Toyota Avalon typically requires about 11.8 quarts of fluid for a complete fill, though the exact amount can vary slightly depending on service method and specific vehicle variation.


What affects the total capacity


Fluid capacity is influenced by how you service the transmission. Below are the common scenarios and their typical requirements:



  • Complete transmission service (pan drain, new filter, and refill): roughly 11.5–12 quarts.

  • Pan drain and refill only (no filter change, no converter drain): usually about 6–8 quarts, since fluid remains in the torque converter and cooler lines.


Note: Always verify with the owner's manual or a Toyota service manual for your specific VIN, and use the recommended transmission fluid (Toyota ATF WS is commonly specified for late-model Toyotas).


Practical tips for a safe, accurate fill


To ensure an accurate fill, follow the official procedure: warm the engine, start in Park, check level with the transmission in gear as specified, and account for any additional top-offs after the fluid has circulated. It’s wise to have a little extra ATF on hand, as the system may take more fluid during subsequent checks.


Summary


In practice, plan for about 11–12 quarts for a full transmission service on a 2008 Avalon, with roughly 6–8 quarts for a simple pan drain and refill. Exact amounts can vary slightly by vehicle, service method, and fluid type, so consult the owner's manual or a Toyota service bulletin for your specific car.

How many quarts of transmission fluid do I need for a drain and fill?


For a standard transmission fluid drain and fill, you'll typically need 3 to 5 quarts, but you should always measure the amount you drained and refill with the same amount to start, then check the level using the dipstick after running the engine. The exact amount varies by vehicle, and it's crucial to check the owner's manual or look up specifications for your specific make and model, as a drain and fill will not replace all the old fluid. 
How to determine the right amount

  • Drain the old fluid: Let the old fluid drain completely. 
  • Measure the drained fluid: Measure how much fluid was drained. This is your starting point for refilling. 
  • Refill with the measured amount: Put the same amount of new, correct transmission fluid back into the transmission. Using a funnel can help with this process. 
  • Start the engine: Start the vehicle and let it run for a few minutes, shifting through all the gears (Park, Reverse, Neutral, Drive) while holding the brake. This circulates the new fluid. 
  • Check the level: Turn the engine off and check the fluid level with the dipstick. Add more fluid in small increments if the level is low, or drain a small amount if it's too high. 
  • Re-check: Repeat the process of running the engine and checking the dipstick until the fluid level is correct according to the dipstick's hash marks for a "hot" reading. 

Important considerations
  • A drain and fill is different from a full transmission flush, which requires significantly more fluid (10-12 quarts or more) because it aims to replace all the fluid, including what's in the torque converter. 
  • You should always use the specific type of transmission fluid recommended by your vehicle's manufacturer to avoid damage. 
  • Some vehicles, like certain Land Rovers, do not have a dipstick and require a fluid extractor to add new fluid. Consult your owner's manual to be certain. 



How much transmission fluid does a 2008 Toyota Avalon take?


For Automatic Transmission: U660E....WS

Capacity:3 quarts Initial Fill.
Capacity:6 speed U660E Total Fill 7 quarts.



What kind of transmission fluid does a Toyota Avalon take?


The correct Toyota Avalon transmission fluid type depends on the model year, with newer models typically using Toyota WS (World Standard) fluid and older models often requiring Dexron III or other specified fluids. Always consult your owner's manual for the specific type, as using the incorrect fluid can damage the transmission. For example, the 2004 model may use Dexron VI, while a 2006 model may use WS fluid. 

  • For newer models: Look for fluids that meet the Toyota WS specification. 
  • For older models: Check your owner's manual, as it may specify fluids like Dexron III or Dexron VI. 
  • To be sure: Always refer to your vehicle's owner's manual to confirm the exact fluid type required for your specific year and model. 



How to check transmission fluid in 2008 Toyota Avalon?


To check your transmission fluid, follow these simple steps:

  1. Turn on your engine and wait for a few minutes so it can warm up.
  2. Locate the transmission fluid dipstick.
  3. Remove the fluid dipstick and examine the fluid.
  4. Wipe off the transmission fluid dipstick with a rag and insert it back into your Toyota.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.