Quote:
Originally Posted by dubbs
Does the butane in the gas have any effect on MPG?
I've noticed in my 40mpg beater that we average a bit less now, doing the same driving, then in the summer..
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Probably cause it's cold out.
1. you may let it idle more, to warm up.
2. cold air is more dense, thus, more air is run into your engine. more air means more fuel.