Propane Powered Engines Featuring a 7.3 Ford and 6.7 Cummins

Schwan's Food Delivery trucks had OEM propane engines. All the drivers we had (GA, NC, SC & TN) all said the same thing. The trucks had little power. I don't know if it was due to gearing or the fuel or the engines. As for refueling, all our drivers were running routes that were far from the main depot. So they had a delivery truck that would drive out from the main depot and park until they stopped by to empty the delivery truck. They refueled at propane distributors or the satellite fill stations.