Just wanting to see which is more preferred.. synchromesh or gear oil
MT90 redline( just seems thin)
75w-90 royal purple
Synchromesh GM
![Fishin :fish: :fish:](/styles/default/xenforo/smilies2/fishin.gif)
Atlas recommends synchromesh or 75w90 gear oil,synthetic on all, but they also tell you that you can use a list of oils
MT90 redline( just seems thin)
75w-90 royal purple
Synchromesh GM
![Fishin :fish: :fish:](/styles/default/xenforo/smilies2/fishin.gif)
Atlas recommends synchromesh or 75w90 gear oil,synthetic on all, but they also tell you that you can use a list of oils