Does Low Tire Pressure Increase Fuel Consumption?

1 Answers
DiAlex
07/29/25 11:27am
If the tire pressure is too low, the vehicle's running resistance will increase, and the overall fuel consumption will also rise. According to the international GBT2978-2008 standard, the recommended tire pressures for different types of tires are as follows: Standard tires: 2.4-2.5 bar; Reinforced tires: 2.8-2.9 bar; Maximum pressure: should not exceed 3.5 bar. Other hazards of low tire pressure: It can cause the steering wheel to feel heavy and lead to vehicle drift, which are factors detrimental to driving safety; It increases the movement of various parts of the tire, leading to excessive rolling and abnormal heating; It reduces the functionality of the cords and rubber, causing delamination or cord breakage, and excessive friction between the tire and the rim, resulting in damage to the bead area and abnormal wear; The friction between the tire and the ground increases exponentially, causing the tire temperature to rise sharply, the tire to soften, and its strength to drop drastically. High-speed driving under such conditions may lead to tire blowouts; It increases the deformation of the tire body, making the sidewalls prone to cracks, and generates flexing movements, leading to excessive heat, rubber aging, fatigue in the cord layers, and cord breakage. It also increases the tire's contact area with the ground, accelerating wear on the tire shoulders.
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