Hello Scotty,
I watched videos in which you recommended not to flush oil from an old transmission. I got a 2014 Sienna with 96000 miles and the transmission oil has never been changed. I do have an extended warranty till 100000 miles.
Should I have the dealership change the transmission oil or flush it or just leave it alone? Remember, I do have extended warranty.
Regards,
Masood
What does your owner’s manual recommend?
If it doesn’t say, I’d just do a regular drain & fill. Never flush!
For further guidance - https://carkiller.com/scottykilmer/qa/atf/
Additionally, make sure from this point onward, you stay on top of ATF fluid change intervals for longevity of the transmission.
Check the link above. See if the fluid is burnt if its the correct color...
Do a drain and fill not a flush.
