What should be the minimum tread depth for the steering wheel tires of a truck?

[StHayden]

The tread depth for the steering wheel tires of a truck should be no less than 3.2 millimeters. Here are specific details about truck tires: 1. Truck tire pressure: Tire temperature varies depending on driving conditions and weather. Generally, maintaining a tire pressure between 2.4-2.6 is considered normal for trucks, and it is recommended to check the tire pressure once a week. 2. Nitrogen inflation: During summer, road surface temperatures often exceed 70℃. For trucks driving long distances in hot summer conditions, tires with damage or weak spots are prone to blowouts due to excessive tire pressure. Affected by temperature, the gas inside the tires will expand automatically, increasing the tire pressure from 2.3 kg to over 3 kg. To ensure proper tire pressure, it is advisable to inflate tires with nitrogen in summer, and the filling pressure should be reduced by 10%.