DWM- 42.9mpg, I don't want to wee on peoples figures, but 4.72L is a bit low accuracy, if you are just using fill ups its easy to be 0.5L out. Still 38mpg is pretty good.
Baggy- my experience and common knowledge on econmodders is that economy reduces with increased speed and revs. 50 is alot better than 70.
I haven't tried any comparisons yet but I do expect that spark efficiency at low rpm is important given the difference in heasitation with a clean dizzy.
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