Legal Tyre Pressure Limit

The tires bend and heat up during the rotation of the wheels. Bending and heating up of a poorly inflated tire is greater and internal structural damage from tires and tire failures are possible. Temperature directly affects the air pressure of your pneumatic tires, so for an accurate PSI reading, you should check tire pressure when tires are cold. If it`s cold outside, you can expect your tires to lose PSI and you should check even more frequently. This will help ensure maximum security. Take your car to a mechanic you trust for a professional evaluation.3 You can then note the tire pressure of each tire and compare it to the ideal PSI you read in the driver`s door or owner`s manual. Be sure to read in detail, as for some vehicles, the front and rear tires have a different recommended PSI. You can check your tire pressure at auto parts stores, mechanics, gas stations and at home. To check tire pressure at home, you need: The recommended pressure can be found either in your car`s owner`s manual or on a sticker inside the driver`s door pole (see photo). This is the pressure at which the car handles, brakes and works most calmly and safely.

Note that this specification refers to the pressure measured when the tire is cold (called cold pressure). If you drive your car or if it has been in the sun, the heat generated can increase your tire pressure by several PSIs. I have benefited tremendously from your content. I always kept my tire pressure at 33 psi, for no reason. Thanks for the article Under tire pressure are one of the possible causes of breakdowns. Other causes are unreasonable speed and load. Aquaplaning occurs when the tire pressure on the ground is equal to the water that repels that tire. The size of the footprint is the same considering the strength or weight of the tire and directly affects the average pressure that the tire exerts on the road. The larger the contact surface (by emptying the tires), the less pressure it exerts on the same surface.

There is therefore a causal relationship between the pressure of your tires and the possibility of an aquaplaning event. Good blog about things you need to know about tire pressure. Your blog is very useful for more people. Thank you for sharing the information. triumphengineers.com/ There is a long list of factors that affect vehicle handling as well as tire pressure (road surface condition, tread depth, inappropriate speed, vehicle steering characteristics, tire behavior when cornering, etc.). Most manufacturers do not specify a minimum tire pressure per se. The recommended value is the amount of air a tire needs for a car to behave properly and safely, and anything below this value is not recommended, so functionally the optimal value is also the minimum. Under U.S.

law, vehicles must be equipped with tire pressure monitoring systems (TPMS) that alert the driver if tire pressure falls below 25% of the recommended PSI. This is considered severe underinflation, but less drastic pressure losses are still considered moderate or mild underinflation, and they can still have negative consequences. Thin tread depth tires are especially dangerous in wet and icy conditions, as this increases the likelihood of your tires losing grip on the road. This can be especially dangerous if you`re driving at high speeds, such as on a highway. Prolonged driving on overloaded tires leads to uneven tread wear and can cause tires to burst. Be careful not to confuse the recommended pressure with the maximum pressure. The recommended pressure is the one you should use when filling your tires, and as explained above, you can find it on your doorjamb or in your owner`s manual. Maximum pressure, on the other hand, is usually indicated on the sidewall of the tire itself in small print near the tire bead (where the rubber is adjacent to the rim). This measurement is provided by the tire manufacturer and not by the car manufacturer and is the maximum pressure that the tire can safely withstand. The maximum PSI of your tires almost always exceeds the recommended pressure. It is not advisable to fill your tire with this pressure for daily use. At the peak of PSI, your car won`t drive as well, braking is impaired, and you could risk dangerous blowouts.

Excessive air pressure can also lead to premature wear of the center of your tire`s tread, shortening the life of your tires. You can temporarily use the maximum pressure when pulling very heavy loads or dragging something. The general global trend in energy and fuel saving makes the topic of tire rolling resistance extremely important. The rolling resistance of the tires is part of the total resistance of the vehicle of the movement with a share of 15% to 25% (urban traffic 15% and highway driving 25%). It can be an important source of energy and fuel savings. Tires are porous and naturally lose air even when not in use. Tires should not be inflated too much or too little, but should be inflated to the pressure recommended by the manufacturer. Significant deviations from the recommended pressure have a negative effect on the physical properties of the tire. These weaknesses are manifested by: When cornering a curve with too few inflated tires, the vehicle aspires to a straight line and needs a greater steering angle to generate the same cornering force. The law on tire „health“ is very clear. All vehicles on UK roads must be equipped with the correct size and type of tyre for the vehicle.

All tires must be inflated to the recommended pressure and have a minimum tread depth of 1.6 mm. Many gas stations have digital air pressure machines; You can also check your tires at home with your own pressure tester. To measure your tire pressure, simply place the pressure gauge on top of your tire valve (after removing the cover) and the reading will be displayed. Depending on the measured value, you can then fill or drain air into your tires until you reach the right pressure. You can usually find your recommended tire pressure either in your vehicle`s manual or inside your driver`s door, sometimes the pressures are inside your filler cap. Studies on tire durability have shown that there is a correlation between negative pressure and tire durability. In other words, negative pressure leads to a reduction in durability, as in the following example: UK law states that there should be no visual damage to your tyres, so it`s important to check each of them for signs of wear as well as cuts and bulges. This ensures that your vehicle is safe on the roads and allows you to avoid a fine and penalty points on your driver`s licence. For your safety, that of your passengers and other road users, all tires in your vehicle must have a minimum tread depth of 1.6 mm. Tire rolling resistance is the force that resists movement when a tire rolls over a surface.

A more precise definition is the rack definition, which defines tire rolling resistance as „the force required to maintain the forward movement of the loaded tire in a straight line at constant speed.“ You can use a 20p part or tread gauge to make sure your tread is within the legal limit of 1.6mm. Checking the tread depth of your type is easy, make sure your car is in a safe place and that you have access to your tire. Use your meter to take measurements of the entire tire, if the meter shows more than 1.6mm on the tire, it is safe to drive.