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Sure, it takes less fuel to move a car that moves less, but fuel is an nearly irrelevant fraction of total weight in most cars. A gallon of petrol weighs about

by ac29 5y ago

Sure, it takes less fuel to move a car that moves less, but fuel is an nearly irrelevant fraction of total weight in most cars. A gallon of petrol weighs about 6 lbs.

fragmede 5y ago
But what's the math on mpg difference for moving an extra 60 lbs? It's probably pretty negligible but without actual numbers, can't actually say.
tehjoker 5y ago
Thanks, I wasn't sure how heavy the gas was. So it's like carrying an extra child in the car.