Combined MPG for me is 11-12MPG (dash readout) not adjusted for the 34" tire size.... rolling around at a svelt 7400# with maybe 15 gals of fuel. With me in it laden with fuel (65 gals) that # is likely just north of 8K#'s.
I drive somewhat like a hyper-miler being easy on the truck on the highways and roads so I think my current combined is the best I'm gonna get. I also live at 2100ft elevation so that plays a factor in reducing my mpgs. When i lived at sea level my mpg even at the same weight was typically at the 13-14mpg mark.
When I tow my camper trailer on the highway I typically see 9-10mpg.... the aux tank keeps me away from the pump for at least 3x longer
I drive somewhat like a hyper-miler being easy on the truck on the highways and roads so I think my current combined is the best I'm gonna get. I also live at 2100ft elevation so that plays a factor in reducing my mpgs. When i lived at sea level my mpg even at the same weight was typically at the 13-14mpg mark.
When I tow my camper trailer on the highway I typically see 9-10mpg.... the aux tank keeps me away from the pump for at least 3x longer