Another Stupid Oil Question
I stopped at the local Auto Zone the other day to buy a set of big allen sockets (14mm) for changing the transmission oil. While I was there I picked up some Mobil syn oil for the transmission. It says 75/90 on the bottle. I noticed tonight in the owners manual they call for a straight 90. I do remember they didn't have any kind of straight 90 at the store. I think they had a 90/140 or something like that.
So can I use the 75/90, or just run by the BMW place to get a straight 90? I can take the 75/90 back, but that's not a big deal. Just wanna make sure I got the right stuff.