When winter arrives, many drivers notice a common issue: their tires seem to go flat more often. This phenomenon is a result of basic physics and atmospheric changes impacting your vehicle.
Understanding why this occurs and knowing the ideal tire pressure for winter conditions are crucial for maintaining your vehicle’s performance and safety during the colder months.
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Why Do Tires Go Flat In Cold Weather?
Tires can go flat in cold weather primarily due to the decrease in air pressure inside them as temperatures drop. This happens because air contracts and gets denser, leading to a reduction in air pressure within the tire. For every 10°F decrease in temperature, tire pressure drops by about 1 PSI (pound per square inch)​​​​​​.
Additionally, long-term storage of vehicles during winter can also contribute to the loss of air pressure or even flat tires. When a vehicle is stationary for an extended period in cold conditions, the tires can gradually lose pressure.
Cold weather exacerbates this pressure loss potentially leading to them becoming flat over time.
What Should Tire Pressure Be In Winter?
The recommended tire pressure for winter typically falls within the 30 to 35 PSI range. However, the precise pressure depends on your vehicle type and the extent of the temperature drop. Therefore, it’s crucial to consult your vehicle’s owner’s manual and adhere to the specified tire pressure guidelines.
It’s important to note that the recommended PSI for your car is ideal for the entire year. There aren’t different recommended pressures for summer and winter.
However, if the temperature difference is too high between summer and winter, it’s essential to check and adjust your tire pressure more frequently during winter months to ensure optimal performance and safety​​.