In article ,
Paul wrote:
have a standard Megane diesel with the original 13" steel wheels
fitted.

have some 14" alloys, will fitting these have any negative effect
on economy?

what if I went up to 15"?

If you fitted larger wheels and pro rata tyres you'd raise the gearing.
Generally this results in better economy. But difficult to check because
the odometer would now give an incorrect reading.

--
*Happiness is seeing your mother-in-law on a milk carton

Dave Plowman London SW
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