Not true, Acutally pickups I've checked with on http://www.fueleconomy.gov/ always have better mileage. Thats as long as you keep your tail gate up. Most pickups are usually a little lighter then a big suv like a suburban. And if your worried about mileage. I wouldn't even think of a 8.1. I would get a duramax. Better mileage, and fuel is cheaper at the pump. Towing a 30 foot camper I get right around 20-22 a gallon depends if I'm bucking wind. Or towing a atv trailer behind the camper then I get about 17-18 a mile.