Many of us have had a tire light come on in our vehicles during the cold winter months. When the air contracts, it causes a drop in the pressure or pounds per square inch (PSI) of your tire, as much as 2 PSI for every -10°F. You may be tempted to fill the tire up on your own (just to get that pesky light off), but you should instead have your tires check out by your local shop to ensure rotations and inflation is done properly.
