Is propane safe as a transportation fuel?
Propane is a very safe transportation fuel. Propane tanks are 20 times more puncture resistant than gasoline tanks, and all tanks are manufactured with safety features to ensure that they are not filled more than 80% (to endure pressure changes). Propane vehicles are fitted with safety valves and shut-off features that shut off the fuel flow when the vehicle is not in operation or if the fuel line ruptures.