
Photo: Westport
The U.S. Environmental Protection Agency (EPA) has certified dedicated CNG versions of Ford's E-450, F-450, F-550, F-650, and F-59 equipped with the Westport WiNG Power System and 6.8L V-10 engine.
Each model is available with a gaseous prep package from the Ford factory. Westport expects certification from the California Air Resources Board on the vehicles soon, according to the company.











