Originally Posted by jbell36
we converted two John Deere (Wright) 2013 23.5HP brand new standers this year to Propane...the engines never used gas, they were converted right from the crates...
we are only getting about 4 hours of run time per 33# bottle...i am told that they fill the bottle up to 80%, which is 7.9 Gallons...
7.9Gallons/4 Hours is 1.975 GallonsPerHour...to me that doesn't sound very good
can anyone tell me what they are getting with propane?
and does anyone know what the equivalent gas engine is getting for GPH?
If you look at btu's of gas and propane your numbers actually are about correct if the engine gets 1.3 to 1.5 gph on gas (which most would say they get).
The propane supports say they can get better due to effiencies etc but the math does not lie. Your about right and yes if the rpm goes down it will take less gph (gas or propane). But blade tip speed changes and ground speed changes also.
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