How to Adjust Tire Pressure in Cold Weather

Maintaining the right tire pressure is critical for your car’s safety, fuel efficiency, and overall performance—especially during colder weather. When the temperature drops, so does your tire pressure, which can lead to less-than-ideal conditions for driving. We’ll guide you step-by-step on how to adjust your tire pressure in cold weather, ensuring your car is well-prepared to handle the cold weather of the winter months ahead.

Why Cold Weather Affects Tire Pressure

Tire pressure warning lights coming on are a part of every winter season. The cold weather affects your tire pressure because air molecules become more compact when the weather gets colder. As the air molecules in your tires get closer and closer together, there’s extra space in your tires, resulting in a pressure drop. Your tires may lose enough pressure that they become underinflated, which can trigger your TPMS light (Tire Pressure Monitoring System) and potentially lead to a flat tire and other issues.

A good rule of thumb is that for every 10-degree Fahrenheit temperature drop, your tire pressure will decrease by about 1 PSI (pounds per square inch). That means if you haven’t checked your tire pressure in a while and the outside temperature has taken a nosedive, it’s probably time to check it out.

How to Find Your Recommended Tire Pressure

Before we jump into adjusting tire pressure, it’s important to know what the recommended tire pressure for your vehicle is since it can vary from car to car. You can find this information in a few places, including your owner’s manual, the sticker on your driver-side door jamb, or the sidewalls of your car tires (though this number represents the maximum pressure, not the recommended).

For optimal performance, it’s ideal to follow the recommended tire pressure outlined on the sticker in your door jamb or your owner’s manual. Keeping your tires at the proper tire pressure helps improve traction which is key for safe winter driving through rain and snow on icy roads.

How to Check Tire Pressure

To check your tire pressure correctly, you’ll need a quality tire pressure gauge. There are several different types of tire pressure gauges, including analog, digital, and even Bluetooth-connected types. You can pick one up at an automotive store, a dealership, or even online.

The best time to check tire pressure is in the morning when your tires are cold, as driving heats up the tires and can give a less accurate reading. Remove the valve cap on your tire and press the tire pressure gauge onto the valve. A reading will pop up instantly, showing you the PSI. Compare this number to the recommended tire pressure. If your PSI is lower than the recommended value, you need to inflate your tires. If it’s too high, you’ll need to release some air.

Where to Inflate Your Tires

There are several ways you can inflate your car tires. Most gas stations have low-cost air pumps that can be used for a few minutes in exchange for some spare change or a swipe of your credit card. These pumps are easy to access and generally come with a built-in gauge, though they may not be as accurate as a quality tire pressure gauge.

A portable air compressor is another great tool to have in your car, especially for emergencies. It offers accessibility and convenience, allowing you to inflate your tires anytime, anywhere. These devices plug into your car’s power outlet and provide a fast way to adjust tire pressure. If you’re not comfortable adjusting your tire pressure yourself, visit your local dealership’s service center. They’ll have professionals who can check and adjust the pressure, ensuring everything is done properly.

How to Adjust Tire Pressure

Once you’ve determined your tire pressure is too low, it’s time to inflate the tires to the recommended pressure. First, twist off the valve cap on the tire that needs inflating. Attach the nozzle of the air pump to the valve stem, ensuring it’s firmly in place to prevent any air from escaping. Inflate the tire, keeping an eye on the tire pressure gauge to ensure you’re not overinflating.

If you’re at a gas station, you can use the built-in gauge, but be aware that they might not be as precise as other types of gauges and it could be worthwhile to bring your own with you. After inflating, use your tire pressure gauge to double-check the PSI. Adjust as necessary until you hit the recommended tire pressure. Don’t forget to replace the valve cap once you’re done.

Why Proper Tire Pressure Matters

Maintaining the proper tire pressure isn’t just a suggestion—it’s a crucial part of keeping your vehicle running well and lasting as long as possible. Properly inflated tires help with fuel efficiency by reducing the friction between the rubber and the road, leading to better gas mileage. For those wanting to save on gas, keeping tires inflated to the recommended pressure is key.

Proper tire pressure also ensures that your car handles as intended, providing optimal performance. Underinflated tires can lead to poor traction, which can be especially dangerous on wet or icy roads during the winter months. Tires that aren’t inflated properly wear unevenly, reducing their lifespan and leading to costly replacements sooner than expected.

Cold Weather Tire Tips

Before the roads get icy and hazardous it’s a good idea to check on the tread of your tires. If it’s been a few years since you’ve had them replaced, the tread might be worn thin. This can make winter driving unsafe for yourself and the people you’re sharing the road with.

An easy way to check if your tires still have enough tread is to do a “penny test.” You insert a penny into the groove of your tire’s tread with Lincon’s head facing downward. If Lincoln’s head disappears, your tires meet the 2/32” tread requirement. If you can see the top of his head, it’s time to get your tires changed.

During the winter months, check your tire pressure at least once every two weeks or after significant temperature changes. This will ensure your tires are always at the optimal pressure. Don’t forget about your spare tire! A flat tire in an emergency is bad enough, but a spare that’s also underinflated can leave you stranded.

Drive Safely This Winter With Northside Auto Group

If you’re still unsure about checking or adjusting your tire pressure, don’t hesitate to visit Northside Auto Group. Our knowledgeable service team is always ready to help you keep your car in tip-top shape, whether it’s answering questions in person, over the phone, or highlighting our inventory of vehicles designed to perform well in all weather conditions. Contact Northside Auto Group today!