Originally Posted by 53x12
Have you had a chance to compare mpg's with vs without the box? How big of a drop have you noticed?
With the Skybox, driving on the highway at 65-70 mph most of the way, I saw 31.8 indicated on the display. Probably would have been 35-36 without the Skybox, but that's just a guess. I'm satisfied that I can get those numbers with that big thing strapped onto my roof.