Hi folks,
My 2002 Sienna Service Manual calls for automatic transmission oil replacement every 30,000 mi.
In recent years, I have drained the fluid each year (about 12,000 mi) and topped up with 3 quarts of ATF.
The fluid drain and refill capacity, according to the manual, is 5 quarts. Not sure what the total capacity is.
Is my procedure OK. Or should I have the trans serviced professionally?
Thanks, Gary