Alex_Murrica
SCCoA Member
So I plan on draining all the old fluid out and replacing it with good quality fluid in hopes of getting rid of the synchro grind I have going into third gear at raised rpms. I was looking around and saw that the GM Synchromesh Trans Fluid is recommended, but I have available (for free) mobil 1 ATF synthetic transmission fluid that I imagine is very good quality. I was wondering if anyone would say it's worth shelling out the money for the GM fluid or will the Mobil 1 I have going to get the job done?