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Toyota
Sienna
Drivetrain
Transmission
Service
Changing transmission fluid, what types, synthetic or not?
2006 TOYOTA SIENNA
140,000 MILES • 3.3L • V6 • 2WD • AUTOMATIC
PEGMARTIN
MEMBER
2 POSTS
FOLLOW
No problem, I just want to know if it's wise to go ahead and change fluid and go to synthetic.
Jan 3, 2022 at 2:56 AM
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ASEMASTER6371
CERTIFIED EXPERT
52,796 POSTS
Good morning,
Synthetic is not standard for this transmission.
If you were to want to replace it, it will be difficult. The torque converter contains six quarts that cannot be drained unless it is removed.
https://www.2carpros.com/articles/how-to-service-an-automatic-transmission
I would just use the recommended fluid and stick to that.
Roy
Images (Click to enlarge)
Jan 3, 2022 at 3:04 AM
PEGMARTIN
MEMBER
2 POSTS
Thank you very much and have a great day.
Jan 3, 2022 at 3:29 AM
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ASEMASTER6371
CERTIFIED EXPERT
52,796 POSTS
You are welcome.
Always glad to help.
Roy
Jan 3, 2022 at 4:51 AM