The owners manual claims "under normal operating conditions" you should never have to replace the tranny fluid. but what is normal operating conditions? i would change it out every 40-50 thousand miles.
You should change your automatic transmission fluid in Toyota gearbox at least after every 30,000 miles.
Automatic transmission fluid should be changed according to the manufacturer's suggestions. Many manufacturers suggest having the fluid changed at every 100,000 miles.
If it is an automatic transmission every 30 thousand miles.
every 50,000 miles if it is an automatic trans.
Urine because you can change the fluids often.
when it smells like an old used tampoon
On my 2000 automatic 4WD, I have to drop the pan to change it. It is designed as a sealed transmission and is not supposed to need changing all that often.
If you have a automatic transmission you need never change it as it is factory sealed for life. One less job to do. Peter
You should change your transmission fluid between 125000 km to 150000 km with the filter for an automatic . and the same for a standard without the filter . because there is no filter required for a standard transmission .
Depending on type of fluid (synthetic, semi-synthetic) not more 60K miles.
Unless you have a LEAK you shouldn't have to add automatic transmission fluid on a regular basis
How to change or add transmission fluid to a ml 350 benz