What are the functions of the tire pressure gauge?

If the air pressure is too low, the tire ground area will increase and the tire shoulder wear will be accelerated. The pressure is too high, will make the tire cord by excessive stretch deformation, the tire body elasticity decreases, so that the car in the driving load increase, such as impact will produce internal crack and explosion, at the same time, the pressure is too high will accelerate the tire crown wear, and reduce the rolling resistance. Tire pressure gauge can accurately measure the air pressure of the tire, so as to monitor the tire pressure at all times, to ensure your driving safety. Better check before you get on the freeway. The tire pressure gauge is mainly divided into three types: pen type tire pressure gauge, mechanical pointer tire pressure gauge and electronic digital display tire pressure gauge. The digital display tire pressure gauge has the most accurate value and is the most convenient to use. How to Use a Tire pressure Gauge and Pump How to Measure tire pressure The simplest maintenance is like a tire pressure check. When it comes to the pressure of this tire, it's good to estimate that 10% of it can be checked properly. If the tire pressure is insufficient: the car does not drive lightly, waste oil is felt, and the handling feels sluggish; If the tire pressure is too high: the tire looks very strong, but the middle part will be too worn, driving will feel floating; And vice versa. Air pressure in the manufacturer configuration range, can make the tire has the largest and most uniform best contact surface, so uniform transmission of driving force, uniform wear. When you open the driver's door, you will see a box of car parameter stickers (usually white) in the door frame or on the side of the door, with the standard value of the car's tire pressure (generally 28~32psi). Here's an empirical point of reference: 32psi for a small car, 35psi for an SUV/Van. Spend more than ten yuan to buy a tire pressure gauge in the car, convenient and worry free. tire gauge It's called Tire Gauge and it's available in many places. The following details, how to measure the steps of tire pressure: 1, of course, is to unscrew the lid of the tire hole 2, take out the tire pressure gauge has been prepared: do not use this end, is to give the tire air yo 3. Take the correct end of the tire pressure gauge, align with the punching hole, press the 4 pop out of the scale, will indicate, now the tire pressure how to go to the gas station, to pump the tire. Most gas stations are filled with gas equipment, as shown in the picture. Some are free, others require bidding. In particular, it should be reminded that there is a red button on the pumping equipment. When you need to pump, you should press it and use it after hearing the noise of the machine (the red button is used to start the air compressor, if you do not press it, you can not pump it). Unscrew the cover of the air hole on the tire, point the air pipe at the air hole, and then press the handle on the air tube to start pumping. When you let go, you don't keep pumping up the tire. At the same time, the barometer in front of the meter pops up, indicating the current tire pressure