FARGO, N.D. -- Bill Ongstad says converting his new 2013 Ford 350 to a propane bi-fuel system might save him 40 percent in fuel costs. "I figure to have it paid for by Christmas," says Ongstad, who ...
This is the first and only engine in its size class with a manufacturer’s warranty to be converted to propane fuel and receive EPA certification, with California Air Resources Board (CARB) ...
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