Quote:
Originally Posted by F87source
The car doesn't say when to service things like diff fluid, or transmission fluids etc which is concerning. So I guess I'll have to make up my own intervals lol. I wonder if ISTA has anything to say about this stuff.
No 15k Is way too much synthetic or not, the whole reason why bmw engines fail so soon is because of the infrequent oil changes, especially when driven hard.
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Diff and transmission fluids are considered lifetime fluids. So you will not see a service interval.