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Assuming you use the same style rims, and tires. Would you get the better gas mileage from 285/70r17's or 285/75r16's? Does one setup have more spun weight than the other?
Maybe the mileage is unnoticeable, but I have been wondering about this for some time now.

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Assuming you use the same style rims, and tires. Would you get the better gas mileage from 285/70r17's or 285/75r16's? Does one setup have more spun weight than the other?
Maybe the mileage is unnoticeable, but I have been wondering about this for some time now.

Thanks
Sprung vs unsprung weight is what you are talking about, I think.

Check the weight of the wheel + weight of the tire for the 16" and 17" options respectively. Assuming you are comparing the same type of tires, which ever one weighs less as a system require less energy to move (will see slightly better MPG, but might not be substantial).
 
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