Is it better to have higher or slightly lower tire pressure on the highway?

[HavenDella]

It is better to have slightly lower tire pressure on the highway, but not too low. The main reasons are as follows: 1. Pressure increases: When driving at high speeds on the highway, continuous friction generates heat in the tires, causing the internal gas pressure to rise. 2. High temperatures can lead to punctures: In summer, combined with high temperatures, excessive tire pressure can easily cause punctures, leading to traffic accidents. 3. Risks of too low pressure: If the pressure is too low, the contact area between the tire and the ground increases, accelerating tire wear and increasing fuel consumption.