* Vehicle condition: A well-maintained engine will generally get better gas mileage than one that's neglected.
* Driving style: Aggressive acceleration and high speeds significantly reduce fuel economy.
* Terrain: Driving in hilly or mountainous areas will lower fuel economy compared to flat terrain.
* Load: Hauling heavy loads drastically reduces fuel economy.
* Tire pressure: Properly inflated tires improve fuel efficiency.
Considering all these variables, you're unlikely to find a single definitive answer. However, expect very poor gas mileage. Real-world reports suggest that owners of these trucks often see figures in the range of 8-12 MPG, and possibly even lower under less-than-ideal conditions. It's not uncommon for heavily loaded trucks or those driven aggressively to achieve even less than 8 MPG.
