Install Guides

BMW Calls It Lifetime Fluid. ZF Calls It a Service Interval.

Obie Cuevas 0 comments

BMW calls the ZF 8HP a "lifetime fill." ZF, the company that actually builds the transmission, publishes a real service interval and says to shorten it under heat and load. Here's why the myth costs people transmissions, when your 8HP truly needs fresh fluid, how the temperature-critical service is really done, and whether the...
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