A multi-state propane supplier is poised to introduce a dual-fuel system for Class 8 diesels that promises significant savings with a relatively modest investment in equipment and a payback in under ...
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 ...