Freightliner’s Cascadia 113 and the ISX12 G from Cummins Westport aren’t exactly strangers. About 100 of the trucks have been in customer hands for some months now. Some will recall a 350-horsepower ...
When I first throttled up the new Cummins Westport ISX12 G, I wanted to make a comparison between this natural-gas-fueled engine and its diesel-fired counterpart. But they are different engines, with ...