Avg 6 mpg. Handled great but could use 200 more HP. Transmission doesn't seem to be operating optimally. When climbing steep it hunts for gears badly and doesn't like to stay in 3rd, which is optimal for most situations. Continuous pattern of 2900 right to 5500, then down to 3rd for about10 seconds (3500), then to forth and then right back to 2nd. Column shifter only has options for D, 2, 1 + OD lockout button. Most hills I just put it in 2nd manually and kept it between 4-4500, 50-55 mph. Trans has always shifted oddly but not really a problem with the truck camper. I'll have to look into it.