valhalla360 wrote:
I suspect something is wrong with your math.
Assuming a 60mph cruise speed:
- at 6MPG, you are burning 10GPH
- If you lose 1 MPG, that means you are burning 12GPH
- So the generator is using 2GPH.
2GPH is a lot for a generator to burn. I'm not sure about your Onan but my Yahaha 2400 running the air/con continously gets about 5hrs/gal or about 0.2GPH, which wouldn't be enough to measure in terms of the MH MPG.
If true, your 24gal propane tank is only going to be good for a single night running the generator.
Assuming more realistic fuel consumption, I would go with the gas option. With the proliferation of pre-filled propane tanks, fewer and fewer places actually fill propane tanks, so it's a pain to deal with.
No, the math is good. 60 miles traveled divided by 10 gallons used is 6mpg. My generator is an onan marquis 5000 BGM. The rated max fuel consumption for this unit is 0.9 gph. I think it’s reasonable for this 22 year old unit to consume as much 1.5 per hour due to wear. 60 miles driven, divided by (10 gallons plus 1.5) is 5.22 miles per gallon. I know the propane tank would only give me about 10 to 15 hours of run time, which is why I would jump on a dual fuel if it were available. I have had a lot of trouble getting propane delivered while on extended stays, packing up and driving down the road is a real PIA just because you need LP.
