Quote:
Originally Posted by zgrunstein
Yeah I hear you. Basically 5W40 every 7000 Miles Liqui Moly. Brake Fluid change was done last year 6000miles ago. Diff/Transfer Case fluid anything on that? BAV says every 3-4 years? My transmission shop says that's overkill. What do you think ?
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According to BMW it is "lifetime" fluid. I don't like that idea, but I think every 3-4 years might be a bit of overkill. I would think every 5-6 years or 50K-60K miles would be reasonable. I don't have any data to back that up, however, and maybe BAV does?