2008 Toyota Sienna Transmission Fluid Capacity: Everything You Need To Know

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If you own a 2008 Toyota Sienna, one of the essential things you need to know is the transmission fluid capacity. The transmission fluid is crucial in keeping your vehicle running smoothly and efficiently. Without proper transmission fluid levels, your Sienna’s transmission system may experience problems, leading to costly repairs.

What is the Transmission Fluid Capacity for a 2008 Toyota Sienna?

The 2008 Toyota Sienna requires approximately 4.0 – 4.2 quarts of transmission fluid for a complete fluid change. It is essential to note that the capacity may vary depending on the type of transmission fluid and the specific Sienna model.

Types of Transmission Fluids for a 2008 Toyota Sienna

There are two types of transmission fluids recommended for a 2008 Toyota Sienna: Toyota Type T-IV and Mobil 1 Synthetic ATF. It is crucial to use the recommended type of transmission fluid to prevent damage to your vehicle’s transmission system.

How to Check the Transmission Fluid Level in a 2008 Toyota Sienna

Checking the transmission fluid level is crucial in maintaining your Sienna’s transmission system. Here’s how to do it: 1. Start your Sienna’s engine and let it idle for a few minutes to warm up the transmission fluid. 2. Locate the transmission dipstick, which is typically labeled and located near the engine. 3. Pull out the dipstick and wipe it clean with a rag or paper towel. 4. Re-insert the dipstick and pull it out again to check the fluid level. The fluid level should be between the “Full” and “Add” marks on the dipstick.

How to Add Transmission Fluid to a 2008 Toyota Sienna

If the transmission fluid level is low, you’ll need to add more fluid. Here’s how to do it: 1. Locate the transmission dipstick and remove it. 2. Insert a funnel into the dipstick tube. 3. Slowly pour the transmission fluid into the funnel, being careful not to overfill the transmission. 4. Check the fluid level again using the dipstick and add more fluid if necessary.


Maintaining proper transmission fluid levels in your 2008 Toyota Sienna is essential in keeping your vehicle running smoothly and efficiently. Remember to use the recommended type of transmission fluid and check the fluid level regularly. Failure to do so may result in costly repairs and downtime for your Sienna.