In Reply to: Diff whine posted by Ed Teller on August 26, 1999 at 07:10:07:
I'm not sure if all oils of the same weight are the same. A lot of us have had good experience with RedLine diff oil which is fully synthetic. If you didn't have the noise before the new oil then maybe changing to a different diff oil may help.
: Changed differential oil last week with Havoline semi-synthetic w/GL-5. Topped off to the right level, buttoned back up. Ever since I now have a speed variable whine emitting from that area. Any clues?? Its not a limited slip.
: Ed Teller
: 88' 535isa
: 87' 535is
: frmr 74' 2002