What is the mpg on a 1998 dodge ram 4x4 v10 2500?

The EPA estimated MPG for a 1998 Dodge Ram 2500 4x4 with the V10 engine is generally around 10-12 mpg combined. However, this is just an estimate. Actual mileage will vary significantly depending on driving conditions (city vs. highway, terrain, driving style), vehicle condition, and modifications. You'll likely see lower MPG in city driving and higher MPG on the highway.