View Full Version : Transmission fluid question

07-31-2005, 04:58 PM
I just had my tranny rebuild (M5R2) and im using Mercon ATF. Do i need to add any friction modifier and if so what kind?

07-31-2005, 08:17 PM
you shouldnt need any additives mines been doing ok since i put in syncros about 170k miles ago, i try to change the fluid every year cause it gets lots of metal shavings in it

07-31-2005, 08:59 PM
ATF sux in them use gm syncromesh