Just ordered stuff to do MT and Diff fluid swaps

Can’t wait to see how I manage to get stymied by this supposedly simple job.

Determining the right oils was actually annoyingly difficult. BMW lists them as lifetime items so the official literature doesn’t give fluid specs or capacities. That meant I had to dredge through forum post after forum post of people squabbling over the correct brands and weights. The general consensus was MT90 for the trans and 75W90 for the diff.


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