Many people have a vague idea of tire pressure. If there is no leak or puncture, they don't care about actual tire pressure. So editor today will promote effect of tire pressure on a car? What air pressure should be in tires?
The effect of tire pressure on a car
If tire pressure is too low, braking distance will be shortened and cornering grip will be improved. Of course, this is not without drawbacks. Low pressure will make car consume more fuel. In addition, while driving, if tire pressure is too low, fragile sidewall of tire will constantly compress and then recover, which will easily cause tire fatigue and accelerate temperature rise, and at a certain temperature, may cause tire to burst.
If tire pressure is too high, it saves fuel and makes driving easier. Although there are many advantages of high tire pressure, there are also disadvantages, i.e. braking distance will be longer. Since tire pressure is too high, contact area with tire will be smaller and traction will deteriorate. In addition, fragile sidewall flexes easily.
What standard tire pressure does manufacturer recommend? Where?
Because tire pressure is too high or too low, there are disadvantages, so we must use car according to standard tire pressure.
Many beginners and even experienced drivers wonder: what is normal tire pressure in my car? Where can I find out? In fact, besides owner's manual, each car will have a standard tire pressure value printed on it, and most riders don't pay attention to location marked with tire pressure value.
So where can I see standard tire pressure? Don't worry about it, manufacturer will give recommended tire pressure, which can be seen mainly in these four places. It will take some time to find. Vehicle Owner's Manual, a plate near B-pillar of cab door, a box next to driver's seat of vehicle, and back of fuel cap when refueling. Most cars will have it on cab door, some cars will have it on tailgate, and some cars will have it marked on inside of fuel cap.
The picture shows tire specification, so when you want to calibrate air pressure, you must first look at logo on sidewall of tire to confirm which tire pressure to choose. The number two in picture means value on pressure gauge. As for different values below, this is due to different units. We can ignore this because commonly used pressure gauge in tires is in bars. Three in picture means it is fully loaded, which can be adjusted according to number of people traveling.
The season also has a certain effect on tire pressure
After learning how to read a tire pressure label, do you need to keep an eye on tire pressure reading on label? The label shows manufacturer's recommended tire pressure, but we also know that tires are highly affected by season. Therefore, tire pressure in winter and summer can be increased or decreased by 0.1-0.2 bar based on recommended value. In particular, in accordance with principle of thermal expansion and cold contraction, recommended value can be reduced by 0.1-0.2 bar in summer and 0.1-0.2 bar above recommended value in winter.
Tire pressure is not only related to driving comfort, but also to driving safety. If tire pressure is too high, friction and grip of tire will decrease, and there will be a hidden danger of tire burst, which will affect driving safety;
Too low tire pressure will not only cause steering sag, deflection and other adverse driving safety factors, but will also cause tire damage. Excessive rocking will also cause tire to get very hot, which will also cause a puncture.
What is correct tire pressure?
Generally speaking, tire pressure is around 2.2-2.5. In summer it is somewhat lower. Press upper limit at full load, otherwise press upper limit. In addition, since front wheels support engine for a long time, tire pressure is slightly higher than rear wheels, by about 0.1. Since spare tire is not used frequently, air pressure must be higher so as not to lose emergency function due to low air pressure during use. Usually it should be above 2.5. Adjust tire pressure when in use and inflate to maximum pressure after use. 2.5 --- 3.0.
Also, cold and hot tire pressures are different, so be careful when testing. The difference between them is about 0.2.
For exact tire pressure, please refer to owner's manual for that vehicle. Due to different models, tire pressure requirements are also different.