The ideal tire pressure for your vehicle can vary depending on factors such as the vehicle's weight distribution, recommended tire pressure by the manufacturer, and driving conditions. It's generally recommended to follow the guidelines provided by the vehicle manufacturer for the correct tire pressure.
Regarding the question of whether all four tires should have the same PSI (pounds per square inch), it typically depends on the vehicle. Most passenger cars and light trucks are designed for equal tire pressure on all four tires. This helps ensure consistent handling, stability, and even wear across the tires.
In certain vehicles, such as high-performance sports cars or those with specialized suspension setups, the front and rear tires may require different pressures to optimize performance and handling characteristics. In such cases, the manufacturer's recommendations should be followed.
To determine the proper tire pressure, you can refer to the information provided in your vehicle's owner's manual, the tire placard located on the driver's side door jamb, or consult with a qualified tire professional who can advise you based on your specific vehicle and driving conditions. It's important to regularly check and maintain proper tire pressure for optimal safety and performance.