That’s because, as air cools it compresses. Compressed air means noticeably lower pressure.
“As soon as the cold weather hit recently, we noticed that it was like four or five pounds lower than it should be,” said Barb Kollaard, of Springboro, about her tire pressure.
Steward said low tire pressure can lead to big problems.
“Just by having low air pressure in your tires and hitting a pot hole, or maybe bumping into a curb, can actually cause the tire to lose air as well,” said Steward.
Drivers can’t always avoid pot holes, but they can help keep their tires from going flat by checking their tire pressure with a simple air pressure gauge.
“You find the valve stem, remove the cap from the valve stem and just put it on,” said Steward.
Some newer cars take their own tire pressure electronically.
“It’s a digital display and it comes on if just one of the tires is low, if all of them are low, or even if my spare is low,” said Kollaard.
Steward said, to know how much air a vehicle requires, drivers can look for the placard located on the driver’s side door jam, under the center console, in the glove box or on the gas tank door.