So I have been running valvoline gl-5 in my 2002 with a 6spd manual tran. I have just realized that's not correct I should have been using gl-4 . It's been about 3 years since I put it in. Can anyone help or have any recommendations on what to do next ? Thanks.

 

We have a good member who sells the correct gear oil for our cars. Check out the following thread.

https://maxima.org/forums/group-deal...available.html

 

do you know anything about the process of changing it back to what it is suppose to be? Or if it is to late

 

JFC. You already ate the synchros. Too bad, so sad.

Drain and fill with cheap GL4 (pennzoil synchromesh). Drive it for a bit, then drain and fill with the good stuff.