You may notice when the weather turns colder, the tire pressure monitoring system (TPMS) light on your dashboard lights up more frequently. Stafford Auto tech recommends checking your tire pressure regularly during the winter to help keep the TPMS light off and your vehicle safe.
According to the U.S. Tire Manufacturers Association, for every 10 degree drop in temperature, tire pressure decreases one to two pounds per square inch (PSI). Checking the tire pressure is important for vehicle safety, tire life and gas mileage.
Incorrect tire pressure can lower gas mileage by 0.3 percent for every one PSI drop in pressure of all four tires and improve fuel efficiency by up to 3.3 percent when the correct tire pressure is maintained.