2004 x-cab Z71, 5.3L, 5" suspension lift, 33" tires. My gas mileage has always sucked, even when it was stock it was not much better then when I added all the aftermarket stuff. I think I got about 13mpg in the CITY when it was stock on 87 octane.Originally posted by rckrzy1@Jun 1 2004, 08:57 AM
what engine are you running ? Your MPG sux compared to my stock
5.3L, I get 20-22 on the hwy and even got 16-17 this weekend towing
a trailer with dirt bikes on it.