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Two main reasons: 1. all tires leak at a very slow rate. 2. A 10 deg F drop in air temp will cause a 1 psi drop in the tire.

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Q: Why is it necessary to add more air to car tires in winter to keep the right pressure?
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Why should people check the air pressure in their tires in winter?

In the winter, tires tend to loose capacity and shrink. Therefore making the air level decrease.


Is it safer to put more air into your tires in the summer or in the winter?

Winter, because there's mire heat and pressure in the Summer.


How many types of winter tires does Uniroyal offer?

There are many types of winter tires that Uniroyal offers. These tires all commonly fight through the winter weather of snow and ice, but each are a little different to be the right type for your car.


Is there a different psi for tires in summer than in winter?

The manufacturer's recommended PSI is the law, but it will vary with temperature, which is why you need to check the pressure monthly. Pressure will go down in the winter, and will go up in the summer. Always check tire pressure "cold" - that is, when the car has been sitting for three hours. Adjust as necessary. Once a month, year round.


Is it necessary to balance your tires when they are rotated?

It is necessary to balance your tires when they are rotated because blancing results in equal air pressure on all 4 tires. Less air in one of the tires will result in faster wear, resulting in the need to rotate more often.


During cold winter months the tire pressure monitoring light is always on how do you suspend it?

Make sure the tires have the correct pressure.


What is right pressure good for tire?

read it off the tire (it's printed on the side). Some tires are higher pressure tires. The proper pressure for you vehicle's tires will be listed on the label on the driver side door jamb.


Do car tires expand in the summer?

Yes, the heat causes the air to expand in the tires. Conversely, the cold air in winter reduces tire pressure.


What is the Tire pressure for a Vulcan classic 1600?

it tells you right on the tires


What is correct tire pressure 1989 Honda accord tire pressure winter?

The proper pressure for you vehicle's tires will be listed on the label on the driver side door jamb.


What is the correct tire pressure for a 2005 Audi a4 with 2354517 tires?

There is a sticker in the car right where the driver's side door meets the frame which shows the proper tire pressure for your tires. For this year, make, and model with these tires, the correct pressure should be 41psi while the tires are cold.


Why is bike tires flatter on winter days than on a sunny day?

because the pressure on a warm day is greater then the amount of pressure on a cold day