After filling the tires, use your tire pressure gauge to check the tire pressure again and make sure they are in a good range.
Let the air out a bit if they are over-inflated by pressing the gauge harder on the valve stem. Thus, we highly recommend that you check your tire pressure regularly, especially before a long drive or heavy load driving. Also, temperature affects the tire pressure a lot, and we will explain it in the next section. For the non-nerdy readers, just remember this rule of thumb and keep in mind that you will need to monitor your tire pressure during different seasons or a sudden temperature change.
For those who want a deeper dive into how psi's are determined, here's the science behind it. The equation we use to calculate the relationship between tire pressure and the temperature is called the Ideal Gas Law. It is a good approximation of the behavior of many gases under many conditions.
Appx1 It works well for most low-pressure gases. First, we take the Ideal Gas Law equation and apply it to our circumstance:. Given the n and R are both constants, and the gas volume in the tire is also a constant, we can take those constants out of the equation, and suddenly we get this straightforward one:. Put all that into the equation,.
Both overinflation and underinflation affect your tire performance a lot, and serious problems might occur. So how will a bad tire pressure affect driving safety?
We will explain in detail below. The grip is mostly associated with the size of the contact patch between the tire and the road. An over-inflated tire radically decreases the contact patch while an under-inflated tire does the opposite. A larger contact patch gives you more grip, and this is the exact reason why lots of racers will intentionally decrease their tire pressures to create a larger contact patch on a dry race track.
However, despite the fact that an under-inflated tire will cause more fuel consumption and improper tear and wear of the tires, for most daily commuters, it might cause an even scarier problem, which is hydroplaning.
Hydroplaning is a hazardous event when a layer of water builds between the wheels and the road surface, leading to a loss of traction that prevents the vehicle from responding to control inputs. Learn more about our free wheel warranty. Schedule your tire change appointment online. Book now. Your browser's Javascript functionality is turned off. Please turn it on so that you can experience the full capabilities of this site. For everyday use, most passenger cars will have a recommended or optimum pressure of 30 or 32 PSI.
One quick corner and your back end could slide out. Some models even place the stickers on the trunk lid, in the console or on the fuel door.
When your tires are consistently inflated to the recommended air pressure, you enjoy greater tire life, performance and safety. When the temperature drops, air contracts and as the molecules get closer together, the reduction in volume causes tires to lose their pressure.
Before you know it, your tires are underinflated. Be sure to check your tire pressure regularly during the winter months. Just as cold outside air causes the air inside your tires to contract in winter, warm outside air causes the air inside your tires to expand in summer.
Tire maintenance is one of the most important things you can do for your car from a safety and cost standpoint. The easiest way to care for your tires is both quick and inexpensive: maintain the correct tire pressure.
Driving on under-inflated tires is one of the biggest causes of tire failure, according to the National Highway Traffic Safety Administration, and not having enough air in your tires present many other problems. They wear out more rapidly, handle poorly and reduce fuel efficiency. In addition, over-inflated tires are more susceptible to damage from road irregularities, and this also creates a bumpier ride.
Knowing how to check tire pressure is critical to your safety and keeping your tires in good working order. Put the pressure gauge into the valve stem, making sure the gauge is evenly and firmly pressed onto the stem. You will have to inflate them to the pressure that is specified by the manufacturer of your vehicle.
Normally you have a sticker on the door frame that tells you the recommended tire pressures from the manufacturers. The tire pressure posted is for giving best ride consideration and normal load conditions. According to Berger the maximum inflation pressure for modern tires is typically between 44 and 51 PSI pounds per square inch.
Tyre pressures are normally higher in the front than the rear, to compensate for the extra weight of the engine and transmission, especially on front-wheel-drive cars. If you have a full complement of passengers and luggage, car makers often recommend pumping up the rear tyres to compensate.
Most passenger vehicles recommend 33 to 35 psi. Begin typing your search term above and press enter to search.
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