If it stays on throughout your trip, the roadway friction alone may not be enough to increase your tire pressure efficiently (in which case you should add air to your tires). Is your TPMS light on? If it goes off within a few minutes of driving, you’ve likely reached a safe tire pressure.Here are tire pressure symptoms to look for in winter: But sometimes, you need to take further action to keep your tires rolling efficiently. Often, the heat of driving on the road is enough to expand the air and restore proper pressure levels. Staying Ahead of the Tire Pressure-Temperature Relationship in Winterĭuring the colder months of winter, you may suspect that your tires are low on air in the early mornings. Lower temperatures = lower pressure and underinflation.Higher temperatures = higher pressure and overinflation.The relationship between PSI shifts as temperature changes: If the temperature outside drops suddenly (like it does overnight in the fall and spring seasons), the air in your tires can become condensed, leading to a loss of pressure. When the air molecules inside your tires heat up, they expand, often leading to increased tire pressure.Īs you might expect, the opposite is true for cold air. In warmer temperatures, air molecules move quickly and spread out more - taking up more physical space. When air molecules experience cold temperatures, they move slowly and stick closer together - taking up less physical space. This way, you can spot potential issues before they create more significant problems. To combat these issues, it's important to learn how to check your PSI to help maintain proper tire pressure levels. PSI imbalance can also lead to premature wear, high replacement costs, and poor fuel efficiency. If tire pressure is too low or too high, your tire performance may become compromised - increasing the likelihood of various safety concerns. Combat inconvenient repair costs by learning how weather affects your tires and what you can do to keep them in excellent working condition. If you’re not careful, this can lead to overinflation or underinflation of your tires. As seasons change and temperatures fluctuate, you'll likely experience varying levels of PSI. And if the pressure in any tire drops about 10 percent below its recommended level, an idiot light on the dashboard comes on.You're not imagining things - your tire pressure is shifting with the weather. And heat can cause the tire’s belts to separate and come apart.Įvery car now has a Tire Pressure Monitoring System or TPMS, which is a built-in gauge and a way to communicate with the car’s computer. Underinflated tires put a larger rubber contact patch on the road, create more friction and therefore run hotter. Of the two ways to miss your mark, underinflating your tires is the bigger danger. With tire inflation, you can muck around and get close enough, and still live a full and happy life. Do I need to do that? What’s the acceptable range for over and under inflation of tires? - Jay In the process of adding air, I’ll sometimes go over by half a psi or one psi, which I then bleed off. I crank up the compressor and after a few tries, I finally get exactly that one psi in there. I check the pressure monthly, and there may be a loss of one to two psi on a couple of tires. The owner’s manual for our 2015 Toyota Camry recommends a tire pressure of 35 psi for all the wheels.
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