* Engine size: Dodge camper vans in 1982 came with a variety of engines (e.g., 6-cylinder, V8). Larger engines mean lower MPG.
* Vehicle weight: Camper vans are considerably heavier than standard vans, significantly impacting fuel efficiency. The specific modifications and added weight of the camper shell would influence the MPG.
* Driving conditions: City driving yields lower MPG than highway driving. Terrain, speed, and even weather affect fuel consumption.
* Maintenance: A well-maintained engine will generally get better gas mileage than one in need of repair.
You'd be lucky to find a documented MPG for a specific configuration. Expect very low MPG, likely in the 8-12 mpg range, or even lower depending on the factors listed above. To get a more accurate estimate for a *specific* 1982 Dodge camper van, you'd need to know its engine size and weight, and then possibly consult owner's manuals or online forums dedicated to classic Dodge vans.