rv ing most are gas/ elec while driving you are running on battery but the fridge is propane They say to turn it off I do not. I guess I am taking my chances. While filling the propane tank you are suppose to kill the piliot light and every one is suppose to get out. Most people I know do not turn off. They will explain it all to you before you leave with it.Its alot of fun but for some reason the other car and trucks like to jump in front of you while riding own the road and then slam on there brakes because they needed to take that last exit. Just keep your distance. Brenda |