What Should Tire Pressure Be on Semi Truck?

Tire pressure is an important factor when it comes to the safety and performance of semi trucks. Proper tire pressure helps ensure the truck is safe to drive and has a smooth ride, while incorrect tire pressure can lead to tire blowouts, reduced fuel economy, and other issues.

The optimal tire pressure for a semi truck depends on the size of the tires and the weight of the load it is carrying. The rule of thumb for most semi trucks is that the correct tire pressure should be about 10-15% higher than the maximum load rating for the tires. For example, if a truck’s tires are rated for 80 psi, then its ideal tire pressure should be 88-96 psi.

It’s also important to make sure that all four tires are inflated to the same pressure level. This helps ensure that all four tires are evenly loaded and will wear evenly. This will also help increase fuel economy and reduce wear on other parts of the vehicle.

When checking tire pressure, it’s important not to overinflate or underinflate tires. Overinflation can cause excessive wear on the center treads of a tire, while underinflation can lead to reduced handling performance due to a softer ride.


In conclusion, proper tire pressure is essential for safe driving and optimal performance from semi trucks. The ideal tire pressure should be about 10-15% higher than the maximum load rating for each individual tire, and all four tires should be inflated to the same level in order to ensure even loading and wear. Following these guidelines will help keep your semi truck safe and running optimally.

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Susan Delgado