I did not have experience with propane ...but drove a service van for my job..was CNG...(compressed natural gas)...cheaper fuel...would get 100 per cylinder, and if you run low flip a switch and it would change to gasoline...Our service vans were 1 ton units filled with refrigeration cylinders, and tools and reclaiming eq...no problems at all. Some of the units were propane but all changed to CNG...more reliable. and the CNG was a fairly small conversion to complete.