So here is the deal, I drive a lot of miles on the highway getting back from Idaho to Colorado. I was wondering if it would help the gas mileage if I were to put in cover up the gaps between the underbody and the bumpers with some thin sheet aluminum. I would also cover any real rough looking areas. I was just wondering if you people think it would be worth my time to bend it up and make something fancy.

 

if you have the time, then go for it. it'll help, but how much it'll help i dont know