Here in Los Angeles, we can buy three different types of diesel fuel, and that led me to the question any self-respecting gearhead would ask: Would any of them make my long-term Mercedes Sprinter van ...

I had a brief road trip to take in New York, and Ram just so happened to have the perfect truck, a midrange 2500 Laramie crew-cab 4x4 with the high-output Cummins diesel engine, a 2,200-pound payload ...