Just made the switch to GM Synchromesh

SonicK20Z · 01-22-2007, 12:14 PM

Just wanted to say that after 12 months and 12,500 miles, I just drained my OEM MTF (which was overfilled BTW) to GM Synchromesh. All I can say is WOW. If I knew the difference this would make, I wouldn't have hesitated so long. Without a doubt, the best "maintenance mod" I have ever done.

I've never had any tranny problems outside of the 1-2 grind sound when doing a high rpm shift... that and third gear tended to be notchy at times (but never did it pop out or anything like that... just didn't always go in real smooth).

I was going to use Amsoil but couldn't find a local dealer, so I just went to a local dealership that sells Acura and Pontiac and picked up 2 qts. And after making the change, I have ZERO notchiness, grind, whatever. It feels better than a brand new tranny. For the record I do have the Comptech SS, which made throws feel more direct. But the MTF change made them feel smooth as butter. I highly reccomend making the change to anyone who isn't 100% satisfied with the way their tranny feels in regard to the notchiness, etc.

**Nomar06** · 01-22-2007, 01:39 PM

I just changed to the Amsoil and it is buttery smooth also but in the cold still have some notchiness/mechanical feel when getting into 2nd. Once it warms up that mainly goes away. Over-all very satiesfied.

FTalento · 01-22-2007, 02:21 PM

Thanks for the update. Will make the change on my next service.

kingnut · 01-22-2007, 03:49 PM

ive never seen a k-series tranny not have some kind of grind or notchy feeling once in a while. i prefer penzoil syn mesh to the honda mtf, i just wonder how much faster are my synchro's gonna wear out.

01-22-2007, 12:14 PM	#1 (permalink)
SonicK20Z Senior Member Join Date: Jun 2006 Posts: 212 Rob iTrader: 0 / 0%	Just made the switch to GM Synchromesh Just wanted to say that after 12 months and 12,500 miles, I just drained my OEM MTF (which was overfilled BTW) to GM Synchromesh. All I can say is WOW. If I knew the difference this would make, I wouldn't have hesitated so long. Without a doubt, the best "maintenance mod" I have ever done. I've never had any tranny problems outside of the 1-2 grind sound when doing a high rpm shift... that and third gear tended to be notchy at times (but never did it pop out or anything like that... just didn't always go in real smooth). I was going to use Amsoil but couldn't find a local dealer, so I just went to a local dealership that sells Acura and Pontiac and picked up 2 qts. And after making the change, I have ZERO notchiness, grind, whatever. It feels better than a brand new tranny. For the record I do have the Comptech SS, which made throws feel more direct. But the MTF change made them feel smooth as butter. I highly reccomend making the change to anyone who isn't 100% satisfied with the way their tranny feels in regard to the notchiness, etc.

01-22-2007, 01:39 PM	#2 (permalink)
Nomar06 Join Date: Jul 2006 Location: Charlotte, NC Age: 27 Posts: 26,228 iTrader: 8 / 100%	I just changed to the Amsoil and it is buttery smooth also but in the cold still have some notchiness/mechanical feel when getting into 2nd. Once it warms up that mainly goes away. Over-all very satiesfied. __________________

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01-22-2007, 02:21 PM	#3 (permalink)
FTalento Senior Member Join Date: Apr 2006 Posts: 226 iTrader: 0 / 0%	Thanks for the update. Will make the change on my next service.

01-22-2007, 03:49 PM	#4 (permalink)
kingnut Member Join Date: Jan 2007 Posts: 33 iTrader: 0 / 0%	ive never seen a k-series tranny not have some kind of grind or notchy feeling once in a while. i prefer penzoil syn mesh to the honda mtf, i just wonder how much faster are my synchro's gonna wear out.