Is it safe to drive on the highway with 3.0 tire pressure?

[ChloeMarie]

It is not recommended to drive on the highway with a tire pressure of 3.0, as it can be somewhat risky. Considering long-distance driving conditions, vehicle tires may experience higher pressure under high temperatures. For example, cold tires may have a pressure of 2.4, which can rise to 2.6 or 2.7 when hot—this is normal. Slightly higher tire pressure is acceptable, but it should never be too low. In fact, most tire blowouts are caused by insufficient tire pressure. When driving with low tire pressure, the contact area of the tread increases, meaning the tire shoulders endure greater lateral pressure. Additionally, the tire sidewalls flex more due to the low pressure, generating friction. During this process, the inner liner of the tire continuously generates heat from self-friction. If driving continues in this underinflated state, the sidewalls and shoulders will keep heating up due to friction. Once this exceeds the tire's fatigue limit, it can damage the internal structure of the tire and increase the likelihood of a blowout.