The rotary's reliability problem was mostly an owner problem. Here's the disciplined playbook that keeps FC 13Bs alive.

The GMC 426 inline-six debuted in 1939 with 340 lb-ft of torque at 800 RPM, pioneering PCV technology for heavy-duty trucks.

Direct-injection engines were introduced with a promise that sounded ideal: more power, better fuel efficiency, and cleaner ...