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colink 01-15-2013 04:35 PM

High RPM
6th gear. 2850 RPM. 75 MPH

Manual gearbox, 2004 645Ci convertible.

Does this seem like high RPM to other owners of manual cars?

Or has a previous owner fitted a modified differential?

Patton63 01-16-2013 07:37 AM

That is similar to mine (650i). I find that mine runs at higher RPMs than I would have expected at cruising speeds, which I simply assumed was normal for this car.

645/333 01-17-2013 12:56 AM

others can speak for the manual, but on the auto it is much lower close to >2k give or take

Patton63 01-17-2013 12:15 PM

I've been struck by how high the RPMs are with the manual at a given speed. Not sure what it would be different than the automatic, but it clearly seems to be.

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