GM Synchromesh

Boss_302 · 05-04-2017, 12:10 PM

The key word is friction modifier, I been thinking about adding some to the transmission fluid to try and make it work easier, I changed to the ML fluid, it helps but not 100%. Ford sells a friction modifier for their rear axle with posi traction to help reduce noise in the traction lock plates. Its a couple of ounce bottle. But it works.

HEK · 05-04-2017, 01:38 PM

Quote:

Originally Posted by Boss_302

The key word is friction modifier, I been thinking about adding some to the transmission fluid to try and make it work easier, I changed to the ML fluid, it helps but not 100%. Ford sells a friction modifier for their rear axle with posi traction to help reduce noise in the traction lock plates. Its a couple of ounce bottle. But it works.

The GM oil is friction modified....and you think is comparable or better the the OEM oil?...

barncobob · 05-04-2017, 03:12 PM

BMW motorcycles had a "lifetime" no change gear/rear end oil for awhile..didn't even have a drain/fill plug... it bit them in the *** after 30K

HEK · 05-04-2017, 09:04 PM

The research continues and found out that the GM fluid is 75w90 and we use 75w85. Other sites have comments on this issue and those who took the chance are happier as the shifting is smooth er..also the 75w85 is not available in stores and is very expensive vs the other brands....

05-04-2017, 12:10 PM	#1 (permalink)
Boss_302 Base Member Join Date: Feb 2013 Location: NY NY Posts: 150 Drives: 11 Nissan 370z S Mt Rep Power: 13	The key word is friction modifier, I been thinking about adding some to the transmission fluid to try and make it work easier, I changed to the ML fluid, it helps but not 100%. Ford sells a friction modifier for their rear axle with posi traction to help reduce noise in the traction lock plates. Its a couple of ounce bottle. But it works.

05-04-2017, 03:12 PM	#3 (permalink)
barncobob A True Z Fanatic Join Date: Sep 2015 Location: hangtown, CA Posts: 1,164 Drives: 16 370Z auto Rep Power: 590	BMW motorcycles had a "lifetime" no change gear/rear end oil for awhile..didn't even have a drain/fill plug... it bit them in the *** after 30K

05-04-2017, 09:04 PM	#4 (permalink)
HEK Enthusiast Member Join Date: Apr 2009 Location: WESTFIELD, MA Age: 66 Posts: 491 Drives: '13 Z Tour Sports 6m Rep Power: 661	The research continues and found out that the GM fluid is 75w90 and we use 75w85. Other sites have comments on this issue and those who took the chance are happier as the shifting is smooth er..also the 75w85 is not available in stores and is very expensive vs the other brands....