tunes
#11
#13
#18
#19
The overhead is wrong if you have any kind of chip. You are not getting 21 mpg its called the lie-o-meter for a reason. Do you have a shortbed? Mine has the 38 gallon tank I can usually get between 250-300 to a half if I do interstate driving and dont play nascar. At least thats what I remember its been awhile since I didnt play nascar