Viewer-submitted questions for The Car Doctor: Q: During the state inspection of my 2019 Nissan Rogue, the “EVAP” and oxygen sensor came back as not ready. I changed the battery back in August and ...

Three and a half years of engineering have brought this beast to life with direct injection, variable valve timing, and way ...

Ducati has announced it will introduce new engine technology that will boost power and torque, improve fuel economy, reduce emissions and won’t affect servicing intervals. Ducati Testastretta engine ...

When it comes to the many variables of combustion inside an engine, engineers measure the timing of key events in degrees of crankshaft rotation, a relative frame of reference that remains constant ...