How much propane should a generator use?
I have a 1990 class A with a cummins diesel engine and a propane generator. I have only filled the propane up twice on the thing. I think it took about 20 gal. to fill. I am in AZ with really hot wea...
Forum Discussion
I doubt he got 50 hours on 20 gallons of LP. I think he miscalculated. The best he could get would be about 35 hours on 1/2 load. Look at the stats for LP usage from Onan. With a Diesel, you can run almost a month on a full Diesel tank. With LP, you have to pack up and then go get LP to refill every few days. That means the COST of the Diesel fuel to drive to the LP filler and your time. You cannot legally add a GAS tank to Diesel motorhome that has an LP system/tank. There is a 3 fuel rule. Any 2 but not 3. THAT is why you see LP gensets on older Diesels versus the OEM adding anothe GAS tank for a Gas APU. I do not know the reason for 2 fuels only (supposed to be a federal rule/law), just the reason OEM's told us 20 years ago when we optioned the Motorhomes. Doug
