What is the national standard for automotive diesel?
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Currently, the national standard for automotive diesel testing is GB∕T19147—2003 "Automotive Diesel", which is formulated with reference to the European standard EN509─1998 "Automotive Diesel". Introduction: Tire pressure, strictly speaking, refers to the air pressure inside the tire. In terms of car maintenance, the engine is the heart of the car, and the damage to the engine will lead to the exhaustion of the car's life. Then, the tire pressure is the blood pressure of the car. The level of tire pressure plays a vital role in the performance and power of the car. The importance of maintaining normal tire pressure: If the tire pressure is too high, the friction and adhesion of the tire will decrease, affecting the braking effect; it will cause the steering wheel to vibrate and deviate, reducing the comfort of driving; it will accelerate the partial wear of the tread pattern in the center of the tire, reducing the life of the tire. If the tire pressure is too low, the friction coefficient with the road surface will increase, leading to higher fuel consumption; it will cause the steering wheel to be heavy and easy to deviate, which are factors that are not conducive to driving safety.