I only have about 1100 miles on my 15 pp sho so far. And ive been trying to break her in. Ive got on it a few times but realky have been driving conservative. Car only has k&n drop in. I cant seem to get above 17 mpg for the life of me. I know its a performance car but come on i should easily be seeing 20-22 with how im driving. Running premium fuel to.