longarm wrote:
I'm lifted with a 2.5 inch Daystar Spacer lift and same size tires as you and I'm just not seeing the 24.7 - 25.3 mpg. Any ideas as to why? I would LOVE to know. I got about 335 miles to last tank.
Well raising the jeep effected aerodynamitcs more than a person would think, I had a 2000 Z71 that got around 20mpg before a 3" body lift and 16mpg after with the same tire it had before the lift. Another thing is the weight of the tire ,not sure whether that could be a factor for you though. On the Z71 I went for a set of Firestone Wilderness to set of Interco Super Swamper radials and the weight difference was immence even with them being the same size. So after the body lift and the heavy stupid tires my Z71 got around 10mpg

.
Around drag racing circles it is said that every pound off the rotating mass(drivelne ,wheels ,tires etc) is the same as adding 4 horsepower, so I would say that it would also work the other way around too.....not sure how accurute that is but is does make sence.
This is one reason I'm not lifting my KJ at this time with a 660 mile a week commute it expensive enough with fuel prices the way the are, if the fuel prices go back down(hoping and praying

) there will be a lift in my CRDs future.