I want to change the lubricant in my '74 with the 3.8 engine/5 speed OD transmission. What is the best lubricant for good synchronizer function, lubrication, and low transmission noise?
Thanks,
Gary
Thanks,
Gary
best lubricant for 265/6 transmission
- Thread starter Gary Knox
- Start date
What gear oil have you been using up till now? (If it ain't broke . . . )
Your transmission was used with E24 and similar models, no? What did the manufacturer recommend? http://bigcoupe.com/phpBB2/viewtopic.php?t=27342
Absent any specific recommendations, e.g., ATF versus "GL-4" 90 weight, it is hard to go wrong with Redline MTL 75W80 or Royal Purple Synchromax, which is evidently safe for yellow metals ( https://www.ecstuning.com/b-royal-purple-parts/synchromax-transmission-fluid-1-quart/01512/ ) , but there are many other choices.
https://www.e9coupe.com/forum/threads/differential-and-transmission-oil.24246/
https://www.e9coupe.com/forum/threads/getrag-dogleg-gearbox-what-type-of-oil.9507/
50/50 Redline MTL and 80/90w gear oil (the kind ok for bronze bushings) per Carl Nelson. Works great for what you are looking for, I use it in mine.
Thanks guys. GL-4 and RedLine MTL are on the way.
Gary
Gary