Has anyone here used Mobil 1 75W-90 in a Sportster transmission? I have heard it was a good replacement but I would like to benefit from someone's firsthand experience if possible.
Thanks
Thanks
Wow. Mobil 1 75w90 syn gear oil is sold at just about every auto parts place around here.quote:
Originally posted by doyall:
I searched the ExxonMobil Material Safety Data Sheet site and could not find a Mobil 1 75w90 gear lube
If I am not mistaken, the EP additive they speak of is sulphur. If I am mistaken, someone PLEASE correct me. Maybe Redline's GL-5 you speak of uses some EP additive other than sulphur. The M1 contains a sulphur compound per their data sheet, but whether the concentration is significant enough to (or will) do harm, I do not know. Without more data, I personally wouldn't risk it.quote:
Most manufacturers of manual transmissions and transaxles recommend an 80W or 90W GL-4 lubricant. GL-5 gears oils which are required in hypoid differentials are not used in most synchromesh transmissions because the chemicals used to provide the extreme pressure protection can be corrosive to synchronizers, which are commonly made of brass or bronze. Typically, the use of a GL-5 lubricant in a synchromesh transmission will shorten the synchronizer life by one half. The extreme pressure requirements of spur gears and helical gears found in transmissions are not nearly as great as found in rear-wheel drive differentials. A GL-4 lubricant provides adequate protection for most manual transmissions, unless a unique design consideration requires the extra protection of a GL-5.
Didn't mean to rile you Bob, just reporting what was in the article.quote:
soluble moly WILL NOT AFFECT THE HARLEY CLUTCHES