Quote:
Originally Posted by oil pan 4
It could be tested with propane. A little math to convert propane mpg into gallons of gasoline equivalent.
Done.
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I had a dual fuel motor home with a 454. The propane mpg sucked the gas mpg sucked. I ended up draining both tanks just to keep from having to stop as often for fuel. I do think the gas was about 8mpg and the propane not even 6mpg. The good thing was I had a supplier for the propane that was well under $2/gal (one special I was able to fuel for $.99/gal) and gas was almost $4/gal at the time. No road taxes on the propane. Both tanks were in the 40 gallon range. The guy that bought it from me burned it to the ground connecting the unregulated motor take to serve the house loads so he could park for months at a time. Apparently the 18k BTU furnace became more like a 50k BTU furnace.