Just got back from the gas station again. 17.7 mpg this trip. this is so much better then the 11.7 and 9.4 that i got last tim eand time before.

im so happy. i celebrated by filling it with mid grade and dropping what was left of a bottle of sea foam in the tank <prolly 3/4 of the can>

I only put 93 in my GXP The dealer said I could burn regular but the premium seems to get much better performance and better gas mileage. Dont know the cost vs mileage tho.... to much deep thinking and I'd have to get 16 inches of snow of GXP

I put 87 in and get 30 mpg.