What should RPM be on a 2002 BMW 330i standard trans. cruising in 5th gear at 70-80 MPH.
What RPM is yours running at?
Here is a calculator to determine RPM and gear ratio's.....http://www.bokchoys.com/differential/e46_gear_ratio_calculator.htm
Depends on if you have the stock gearing, around 3000-3500rpm is about right.
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