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Old 04-20-2011, 12:32 AM
Billwill Billwill is offline
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Location: South Africa
Join Date: Oct 2009
Posts: 529
Mein Auto: BMW E30 318i 1991
Originally Posted by rogue38 View Post
I was sure what fluid was supposed to go into my newly aquired '90 325i after reading all the websites and manuals i could. Even called and talked to a few local Euro car shops in the area.

I have what appears to be the Getrag 260, there is no label on the passenger side bell housing that I can see. It also has the internal wrenching 17mm plugs. Therefore it needs the 80W-90 GL-4 gear oil.

So I drain the fluid out this afternoon. What comes out is Red ATF. Now I'm totally confused. I new the previous owners and the car was dealer serviced its whole life, except for one time at an indy shop, and me doing the brakes, and some minor maintenance.

Found the Dealer Work Order for the 60k Insp II. It shows that the Manual Transmission fluid was changed, and shows ATF on the report. Tranny was serviced again with ATF at 90k at the dealer.

Found Futher reference to 75w-90 GL-5 Gear oil in a dealer invoice, but I believe that might be in reference to the differential.

So anyone have a idea what is supposed to be in this tranny?

Thanks in Advance.
Haynes manual states " gear oil, viscosity SAE 80 to API-GL4 "
I have always used SAE 80 Gear oil...never heard of anyone using ATF fluid!
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