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Old 23rd October 2019, 10:00   #5
another_clean_sheet
Posted a thing or two
 
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Rover 75 CDTI Tourer

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Quote:
Originally Posted by T-Cut View Post
The same amount of work is done in moving around, whether the car runs on 15" wheels or 18" wheels. The amount of work done controls the fuel consumption.



TC
Sorry to disagree though the normal formula is W = MV.
If you do an experiment at a constant speed. Once in the correct gear and once in a gear that is miles too high for the speed you are doing then you will find the former is giving the best consumption.
Or another way to look at it is if you are trying to accelerate at low speed in too high a gear how you have to floor the accelerator to get the car moving
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