Quote:
Originally Posted by Peter7307
Justin,
Personally I would follow the BMW guidelines.
The FWD cars using ATF have diffs designed to run on it.
Cheers , Pete.
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Yeah, I think ur right. After reading further about transmissions that can run either ATF or gear oil, mixing traces of gear oil with ATF can cause the oil to clump up and destroy the transmission (or differential in this case). I think I'll just switch them both to synthetic fluids and leave it at that.