I used to regularly get 16 mpg in my rodeo if I just went to work and back. After adding the roof rack fairing to arc the air up over my roof basket and tire, I got 18 mpg the last 2 tanks. Got 24 and 21 mpg in the 2 fuel stops to Moab (had to make an extra stop because Jack couldnt make it all the way on 1 tank) and got 22 on the way back. I took it off today to see if it drops again but will probably put it back on tomorrow for the long highway run if I end up going to meet n greet in FoCo.