Propane is a clean-burning fuel that is environmentally friendly. According to the Southwest Research Institute, propane exhaust creates 60 to 70 percent less smog-producing hydrocarbons than gasoline. Our vehicles also cut emissions of toxins and carcinogens, like benzene and toluene, by up to 96 percent when compared to gasoline. As Michigan's first propane powered towing company, we are making our state greener and cleaner one tow at a time.