What is the acceptable tire pressure range for car tires?
2 Answers
Car tires can withstand a tire pressure range between 2.3bar and 2.5bar. Tire pressure is not constant; as the tire temperature rises during driving, the internal tire pressure increases. Tire pressure refers to the air pressure inside the tire. Both overinflation and underinflation can shorten the tire's lifespan. Underinflation increases tire deformation, leading to cracks on the sidewalls due to excessive flexing, which generates heat, accelerates rubber aging, causes fatigue in the cord layers, and breaks the cords. It also increases the tire's contact area, speeding up shoulder wear. Overinflation causes excessive stretching of the tire cords, reducing the tire's elasticity and increasing the load on the car during driving.
I'm an experienced driver with over a decade behind the wheel, and I've developed a habit of checking tire pressure before every trip. The acceptable pressure range for tires is usually detailed on the label near the car door or in the user manual, typically between 25 to 50 psi. If the pressure is too low, the car becomes harder to drive and the tire sidewalls wear out faster. If it's too high, the ride gets bumpy, especially uncomfortable when driving over potholes. During my last road trip, improper tire pressure caused my fuel consumption to spike by 10%, costing me extra on gas. I'd advise beginners to carry a tire pressure gauge. In winter, you can add a bit more air when it's cold, and reduce it slightly in summer heat, maintaining the standard value to both save fuel and protect your car.
