Stan50 117 #1 Posted 6 hours ago (edited) 11 hours ago, Handy Don said: The videos show the pros emphatically. There is a lot to like with propane and the hardware to switch a Kohler to propane (or to dual fuel) is readily obtained. Things to keep in mind: - Propane will yield somewhat lower horsepower than gasoline for a given engine displacement/compression ratio. - Sizing a propane tank big enough to run the engine for as long as you need it. The inter web tells us a standard 20 lb propane tank contains approximately 430,000 to 455,000 BTUs. In one gallon of gasoline there are approximately 114,000 to 125,000 BTUs. So about 3.5 gallons of gas (a full 300, 400, or 500 tank) equals one 20 lb tank. Near me a tank refill ~$20; a gas refill ~$15. - Where on the tractor to mount it safely, including plumbing - Refueling convenience (i.e. switching tanks and getting refills) I create new post, We talked about : 10-12 HP Kohler Propane conversion @Handy Don Yes, good point. My pros: no ethanol, cheaper to run. What about one more thing: cast iron Kohlers are old design, are these engines fit for that conversions? Any problems to look for? More often to check valve clearances? possibility of burnt out valves etc? I have bi fuel minivan myself so this is very interesting topic for me. Price ratio LPG:Gasoline in PL is more user friendly, usually 60% cheaper than premium E5 gas, and readily available (95% gas stations has LPG fueling capabilities and 12% cars are bi-fuels). I see one problem in winter: we have winter propane/butane mix of 60/40 (%) so with air cooled engine this is probably no-no. Pure propane is available but more expensive. Edited 6 hours ago by Stan50 Share this post Link to post Share on other sites
702854boy 656 #2 Posted 46 minutes ago (edited) 5 hours ago, Stan50 said: I see one problem in winter: we have winter propane/butane mix of 60/40 (%) so with air cooled engine this is probably no-no. Pure propane is available but more expensive. Stock up on it before winter. The rest of the stuff I can't really help with as I've haven't tried it yet, however with the way gas prices are right now, it might be a good idea to look into Edited 40 minutes ago by 702854boy Share this post Link to post Share on other sites
