What is the minimum tire pressure allowed?
1 Answers
Tire pressure below 1.7 bar is unsafe for driving. Tire pressure refers to the air pressure inside a tire. The level of tire pressure plays a crucial role in a vehicle's performance and power. While there's no exact numerical regulation specifying the minimum safe tire pressure, it's strongly advised not to go below the manufacturer's recommended value, which is generally between 2.2-2.5 bar. Additional information: 1. The manufacturer's recommended tire pressure can usually be found in the vehicle's user manual or near the door (B-pillar or C-pillar). Low tire pressure causes significant damage: Firstly, it increases the tire's self-friction coefficient during movement. The flattened contact patch creates abnormal movement compared to the normal non-contact areas, causing the tire to operate out of round and leading to temperature rise. Secondly, low pressure increases tire deformation, making sidewalls prone to cracks while generating flexing movements that cause excessive heat. This accelerates rubber aging, weakens the cord ply, and may lead to cord breakage. It also expands the tire's contact area, accelerating shoulder wear and potentially causing blowouts. 2. Tire pressure significantly impacts tire lifespan and fuel economy. Improper pressure selection creates power circulation, increasing wear and reducing service life. Considering its effect on vehicle dynamics, selecting appropriate tire pressure is essential for extending tire life and improving economic efficiency.
