2007-01-11 09:14:39 · 9 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
You may have to. Tire pressure changes about 1psi per 10 degrees F of temperature change. For example if the outside air temperature is 40degrees F lower than when you filled them up, your tire pressure is about 4psi lower. Tires also lose pressure over time, so it is good idea to check them regularly.
2007-01-11 09:21:52 · answer #1 · answered by db79300 4 · 1⤊ 1⤋
Fill your tires with air on any day, cold or hot, but do it when the car hasn't been driven very far so that the tires are cold. The air pressures specified in your owner's manual or on the frame of your car are the cold tire air pressures. Tire pressure will decrease when you go from summer to winter temperatures, so you need to check and refill your tires to full pressure as the seasonal temperatures get colder.
2007-01-11 17:23:38 · answer #2 · answered by bobweb 7 · 1⤊ 0⤋
tires are always filled before driven on for that day not filling them on a cold day is a bunch of hot air check and fill your tires with 35 lbs of air in the early morning b4 you drive as air heats up it expands if you fill a hot tire to 35lbs by the time that tire colls overnite //next morn ull only have bout 25 lbs try that experiment good luck mr ase certified mechanic
2007-01-11 17:28:27 · answer #3 · answered by toadyboy 4 · 0⤊ 0⤋
What????
You ALWAYS fill or check the tire pressure when the tires are cold....if its hot, you will get a false reading as the air expands with heat.
Darkmonster...out
2007-01-11 17:20:23 · answer #4 · answered by Darkmonster 2 · 2⤊ 0⤋
Because the cold air is denser and a lower pressure, so when it heats up and the particles accelerate, the tire will end up with too high of a pressure. If your area has a cold spell, you can air up your tires.... but just check them when it warms up to make sure they are not over inflated. In Winter, air them up to 29-30psi. In summer, try 32-35.
2007-01-11 17:20:15 · answer #5 · answered by Steve G 2 · 0⤊ 1⤋
Nothing wrong with it, in fact the tires are often down on air pressure in cold climates due to rim leaks. and the fact that pressure is lower when cooler.
2007-01-11 18:01:46 · answer #6 · answered by done wrenching 7 · 0⤊ 0⤋
Thats a myth. Your technically not suppose to check your air pressure when your tires are hot from driving.
2007-01-11 18:17:38 · answer #7 · answered by novamega16 1 · 0⤊ 0⤋
checck tires when the tires ares are cold, does not matter about ambient air temp.
2007-01-11 18:07:52 · answer #8 · answered by michael k 3 · 0⤊ 0⤋
cause the moisture in the aircompressor can freeze on the outside of your valve stem causeing it to stay open and therefore your tire will leak, if your going to do it doit indoors
2007-01-11 17:20:48 · answer #9 · answered by steve 4 · 0⤊ 1⤋