Originally Posted by jsr72
Basically figure 5 1/2 lbs off your car's effective rolling weight for every pound you remove from a wheel. So by dropping 7 lbs or so with each lightweight 18" over stock, it would be like removing ~40 lbs from the car.
You might want to just dump your 16" spare for a couple of weeks and see what difference that makes first.
So it's more like driving without an adult male in the passenger seat everywhere you go.
I've got 1500 miles on the ticker and already looking for some lightweight 18's to put on the car over my factory 17's. Either that or just keep these 17's and have them as roadtrip fodder wheels. No reason to mess up a new set.