It's one of those things drivers occasionally do without thinking: you're cruising down the road, you move the shifter into Neutral, and suddenly the engine revs freely while the car keeps rolling.
So what actually happens? Contrary to some long-running myths, shifting an automatic transmission into Neutral while driving doesn't automatically destroy the gearbox. But it does change how the vehicle behaves, and there are good reasons automakers generally tell drivers not to coast in Neutral.
