just wondering if anybody who has one has seen a major decrease in gas mileage, I am considering about buying one but don't want to mess up my gas mileage too much. also, just wondering if anyone knows of a good place to look for one.

 

mine went from 12-13 to 10-11. Prolly would be a little less of a decrease if I didnt have lights on it.

 

mine w/ a hi lift jack went from 16.3 to like 15.2 but i also switched to synthetic oil and got did the ISR mod so that prolly upped my mpg a bit