Feb 25, 2024 · Camping grills use many different fuel sources. Here’s what you need to know about each one : Propane. This is the most common fuel source for camping grills, like the Eureka Gonzo Grill Camp Stove. It performs great in the summer, but not as well in the colder months. On average, propane costs between $2 and $2.75 per gallon.