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Old 08-17-2014, 06:28 AM   #1 (permalink)
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Display shows increased mpg with higher rpm

I thought the general consensus is that higher rpm=higher fuel consumption, but if it is so, then why does my onboard computer display show my fuel consumption decreasing with higher rpm when accelerating in same gear?

I can only think and explain that in terms of fuel delivery rate, lets say 2 ml of fuel/second is delivered when the pedal is pressed at 50% at 2000 rpm in second gear at 30 km/h , and rising to 4000 rpm=60 km/h but with the same amount of 2 ml of fuel being burned.

So why should I change at lets say 2700 rpm if the instant consumption decreases as it accelerates to higher rpm ?

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