Spoke with a technician at the dealership that has done the service for the last 12 years on it. He said it should have the 80w gear oil in it, but according to the books it is temperature dependant. In colder climates, lighter oils are used. The car was bought new in Missouri, where winters could be quite cold. But now in the Deep South years later where winters rarely get into the teens at night, it probably should be thicker. Dealer probably just replaced what was already in it.
Technician said to try 80w gear oil and see how it does. If I donít like the way it shifts to drain it and put lighter weight oil in it. But probably I should stay away from the synthetic oil, with 150k miles on the transmission it might not do well.
2006 330i 6 Spd Man, ZSP, CA, SG, Black ette, Burl, Sat Prep.
ED 29 May 06
Man, ED could become addicting!
1990 325i, 5spd, Calypso Red, Tan