Originally Posted by jeffrie
FYI E36's use ATF tranny fluid in their manual cars.
80w90 will still work (better IMO) but in the winter it'll be stiff to shift till it warms up a bit (uses little over 2L). I also have 80w90 in my tranny already is it eases any concern.
5W50 sythetic is great oil, I pearsonaly use 20W50 synthetic year round, A BMW 4 pot isn't picky about what you put in it's oil pan.
+1 to BigD's post.
is this for certain? I have atf 3 and 4 in the garage, tons of it... Dad is a mechanic and loves automatic, go figure.