Should car tires be replaced simultaneously?

[Adrian]

When replacing car tires, it is necessary to replace both tires on the same side simultaneously. Methods to determine if tires need replacement: Tread wear approaching the wear indicator: Any brand of tire will have a wear indicator at the bottom of the tread grooves. Generally, the height of the wear indicator for passenger car tires is 1.6 millimeters (this height is also the legally mandated minimum groove depth), while for heavy-duty tires, the wear indicator height is 2.4 millimeters. Factors affecting tire lifespan: Tire manufacturing date: The shorter the time since manufacturing, the stronger the rubber's wear resistance. Generally, tires wear faster after three years. Vehicle alignment parameters: Properly aligned wheels ensure even tire wear, thereby increasing tire lifespan. Tire brand: Different brands of tires wear at varying rates.