Revving engine to warm it up is practically useless.

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The latest Hankook Tire Gauge Index took a look at some of the major misconceptions that Americans have when it comes to winter car care and driving.

It’s best to let your car warm up before you start driving.

False. According to the Gauge, 82 percent of Americans believe it is best to let your car warm up before you hit the road. However, your car will warm up much faster while driving at a normal operating speed; idling does very little to actually warm up the engine and instead wastes gas.

Gas in your tank can freeze if you leave your car outside in extreme cold.

True and false. The gas in your car’s tank will not freeze, which should ease the minds of the 35 percent of Americans who think it will. However, there is a chance that the condensation inside the gas tank can freeze, which might damage your fuel line. Keep the tank at least half full to prevent a fuel line freeze if you park your car outside this winter.

If your car begins to slide, apply sharp braking and quick counter steering to correct the car’s position.

False. About 1 in 4 Americans could use a defensive driving refresher, as 22 percent of drivers incorrectly believe sharp braking and counter steering will help correct a skidding car’s position. Half of Americans (51 percent) have skidded off the road at some point, so if you find yourself in that slippery situation, experts at suggest that you steer into the skid, and keep your foot off the gas and brake.