RE: What will get better MPG?
' mashing ' the throttle on a small engine is not efficient, not true.
petrol engines work at maximum thermal efficiency ONLY when the throttle is wide open, unless you know something engine designers dont? try googling it if you dont believe me,
i wouldnt, i dont believe anything, i prefer to know .
the reason wide open throttle produces max efficiency is simple, that allows max air into the engine which produces max compression ratio which equates to max efficiency,
thats one of the reasons a diesel will hammer a petrol on mpg, it doesnt have a throttle so it operates at max compression ALL the time, the other reason of course is the compression ratio is about twice as high as a petrol.
mike.