A car engine can use as much as half a gallon of fuel after idling for an hour. Why is 'idling' so bad for cars? What to know ...

Your engine feels calm at a stoplight because a hidden idle system keeps fuel, air, and spark in balance. That quiet stability is not luck, it is the result of sensors, valves, and software working ...

There are plenty of different schools of thought on the matter, but the truth depends on what type of car you have. There are differing opinions on how long an engine should idle and warm up before ...

DETROIT — As frigid temperatures engulf large swaths of the nation, auto experts are debunking a longtime myth about driving in winter. AAA, a federation of motor clubs, recommends drivers start their ...