Don't let winter temperatures leave you flat

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Don't let winter temperatures leave you flat

(NC)—As the end of 2003 approaches, we have once again experienced first-hand that Canada is a country of temperature extremes. In many places summer temperatures have reached 30º C and winter temperatures have fallen to –30º C. In many parts of the country, winter lasted much longer than usual.

These variations can wreak havoc with your tire pressure, sacrificing tire performance, tread wear and safety. Proper inflation is especially important during the winter months when cooler temperatures can cause the air in your tires to contract.

You should check your tires' inflation pressures once a month as shorter days and colder temperatures cause the air in your tires to contract. For every 5.5 degree change in the outside temperature, your tires' inflation pressures will change by about one psi (pounds per square inch) – rising with higher temperatures and diminishing with lower temperatures.

"Maintaining the correct air pressure is a requirement for good handling, traction and durability," says Tony Mougios, Michelin Brand Manager in Canada. "Check the air pressure when tires are cold and maintain the inflation pressures indicated by the vehicle manufacturer. Never under-inflate a tire as an attempt to increase traction!"

If you are fortunate enough to park in an attached or heated garage you will also lose pressure when you leave the garage's warmth and venture into the real world outside. Add one psi of "cold" tire pressure to your tires to compensate for each 5.5 degree temperature difference.

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Remember that temperature variations not only affect the tires on your car, but your spare as well. Always remember to check your spare tire while testing the ones on your vehicle. A flat spare is useless.

And finally, don't forget to keep your valve caps on. If left off, moisture can freeze in the valve and allow the air to escape.

When the temperature starts to drop this winter, check your tire pressure regularly and adjust it accordingly. Making sure that your tires are well-prepared for winter driving will help keep your vehicle safe and on the right track this winter.

- News Canada

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