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 ...

Some of the rules you learned in the driveway were just plain wrong.

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 ...