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      03-20-2020, 04:09 PM   #11
M40iSFR
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Drives: Z4 M40i
Join Date: Feb 2020
Location: Zurich

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It must be possible to calculate.

At a constant speed of 120 KPH, gradient, rolling resistance, and all other variables constant. 8th gear would be say 1,000 RPM, 7th gear 1,500 RPM, etc. What's the difference in fuel consumption.

Maybe something to do with gear ratios?

Last edited by M40iSFR; 03-20-2020 at 04:15 PM..
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