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Che 2A tire - How to Check Your Tire Pressure The reason a...

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How to Check Your Tire Pressure The reason a tire looks flatter in cold weather is because it actually is! When your tires get colder, the air inside the tires actually shrinks and causes the pressure of the tires to go down, and they look flatter. And here is why: hopefully sometime in high school chemistry or physics, you'll learn about the "Ideal Gas Law." Basically what this law says is that for a gas (such as the air in your tires) the pressure, volume, weight, and temperature are all related. If you have the same "amount" of air, and the temperature goes down, then either the volume (the amount of space the air uses), or the pressure, or both must go down as well. This is exactly what happens in your tires. It get's colder, and the pressure in the tires goes down, so it looks flatter. You can actually measure this if you have a good tire pressure gauge. As you drive, the temperature of the tire will increase, causing pressure to go back up. So with your tire gauge, measure the pressure in the tires first thing in the morning before the car goes anywhere. Then, after driving around a while, take another measurement. What you will see is that the pressure went up. The tires
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