Huckles

I might consider a set of aftermarket rims if it would reduce rolling mass significantly enough to increase fuel efficiency.

Can anyone tell me the weight of the original equipment rims?

Does anyone have any experience with before and after mileage after replacing rolling stock?



Thanks in advance.

Bob259

Wish you would have posted last week... I got my F-Sport wheels mounted on Friday and had the stock wheels here till Monday when I had the snows mounted on them. They were heavier then I thought, but didn't weight them.

Dozer42

Word is the stock OEM wheels are 24.7lbs each.

I went with aftermarket Enkei PF-01s, 16lbs each.

I didn't notice a huge increase in mileage, but my mileage has been steadily going up as the engine breaks in (I'm just hitting 5k miles now).

Handling did 'feel' better, but I also went with road magnet lowering springs around the same time.

Either way, I'm very happy with it being lowered, very happy with the handling, and I don't regret going with the lightweight wheels at all.

I can't tell you I gained 2MPG or something tough, I was hoping for that, but if anything it's more in the 1MPG range.

This would be similar to the Prius owners going from the lighter 15 inch wheels to the heavier stock 17 inch wheels.

Personally I say go for it: They look good, MPG can only get better, and it sure doesn't hurt handling.

jimmyc13

One other thing to consider is the tires you end up getting for the aftermarket wheels. The OEM tires are low rolling resistance and are claimed to get from 3-5% better mileage than normal tires. So if you get lighter wheels but normal tires, your MPG could actually go down.

midcow3

The weight isn't the only metric that affects the mpg. It matters more how the weight is distributed around the center. If the weight is all on the outer edge then the torque moment arm has to move all of the weight. This requires much more effort (lower mpg) that is the weight is centered closer to the axis of rotation. The best wheels, if you are going purely for mpg, would minmize the outer rim weight as much as possible. You also look for tires that weigh as little as possible because almost all tire weight in on the outside and greatly affects mpg.Then there tire diameter.

Typically the larger the diameter the more tire weight on the outside and thus greater torque momentum, but less friction. The smaller diameter diameter has less outside weight but greater friction. So there is a trade-off. The more friction the less mpg.