I went to a Chevy dealer this weekend to get GM synchromesh for my tranny fluid change. The parts guy asked if I needed the synchromesh with or without additives. I have no idea!!!! So, I went to Honda and got the regular MTF, but, for future changes, anyone know which kind of GM Synchromesh to get?

Thanks!

 

You want the one that is "Friction Modified" that is the one with the additives. We don't need the additives but it works significantly better anyway.

 

You definitely want the one with Friction Modified. You can do a search on this site and you should be able to find the exact part #, so you know you'll be getting what you want.

 

Thanks !!!

 

From the black 32oz bottle.....

GM
Synchromesh Transmission Fluid Friction Modified
#12377916

 

Or AC-Delco #10-4014

 

OH NO!!!!
I was following some other thread on S2KI and I just picked up 4 quarts of GM Synchromesh Part # 12345349 instead
Has anyone tried this??
Thanks.
--njexpress

 

You need only 2 quarts for S2000. Just return these 4 quarts and buy the correct one: "Friction Modified".

 

i called up honda today..they said to put 3 quarts of tranny oil..so what's the best to do?? 2 or 3 cause i don't want to overfill it???

 

yikes three is way too much. i put two quarts of gm synchromesh FM and a good bit drained out