How to check condition of transmission fluid without dumping all the contents?
So I have been told I need to have the transmission fluid changed in my GX470 by the dealer. They have said that off and on when I take it in for an oil change or some other services since 60K miles. I have never felt a difference in the transmission performance and have had no 'quirks' with it like I have had with other cars when the trans fluid is nearing the end of its useful life.
So I am concerned that since it is a 'sealed' unit that has no dipstick to check the fluid condition, they have a 'safe' way to tell me I need an expensive service when I really do not. Is there a way to check the fluid condition without having to dump the fluid or have the chance to accidentally dump a significant amount of trans fluid?
I am not afraid to work on my cars (I used to work on my cars including my built up rotary with a street port) but have just been too busy to do that stuff for the past 15+ years and am starting to get back into maintaining my own cars again.
Last edited by Davenlei; 08-14-14 at 11:09 AM.