MX-3.com

whats your guys opinion on it in the GS transmission? If its a BIG no no what do you guys use love to hear thoughts on this guys

I love Redline MT90, but I have been considering using Amsoil synchromesh when I swap to the KL later this month.

I have Valvoline Synpower in my tranny

im talkin like strait synchromesh and nothing else? I mean the stuff kinda seems light as far as thinkness..

You need to run thick gear oil, such as 80-90w. The G-series is designed to use thicker gear oil, not anything else. I have tried everything from Redline, Royal purple, other brand to no brand to Mobil 1. Personally, I like the Royal Purple. Do not put manual trans fluid in your gearbox or Synchromesh.

jaydog is back wrote:You need to run thick gear oil, such as 80-90w. The G-series is designed to use thicker gear oil, not anything else. I have tried everything from Redline, Royal purple, other brand to no brand to Mobil 1. Personally, I like the Royal Purple. Do not put manual trans fluid in your gearbox or Synchromesh.

Manual trans fluid is gear oil. You probably meant to say auto trans fluid?

Royal Burple for sure.

jaydog is back wrote:You need to run thick gear oil, such as 80-90w. The G-series is designed to use thicker gear oil, not anything else. I have tried everything from Redline, Royal purple, other brand to no brand to Mobil 1. Personally, I like the Royal Purple. Do not put manual trans fluid in your gearbox or Synchromesh.

Not to sure where you are from, but up here thats the last thing you want in these transmission during the winter... Once the temps start dropping the syncros really dislike gear oil, its to thick... You start getting crunchy shifts, occasional grinding...