Weird enough as this might sound, I get around 16-17 in town... when I go out on the freeway I get around 18-19 even at 70-80 with the throttle mashed. When I only go around 55-60 I only get about 1617. I have a 81 22r 214K 37s and 5.29s. Some people I know think my truck burns oil like crazy being on the gas on the freeway, but it doesnt lose much oil at all...