What is the perfect tyre pressure?
Each vehicle has its own specifications for tyre pressure, but most fall between 28 and 36 psi (pounds per square inch) however this could be greater especially if you carry extra load in your vehicle or run on larger diameter wheels (there is usually another pressure recommendation for these or the placard). Psi applies to unloaded driving conditions. Increasing it to 40-45 is a good practice for towing and carrying loads. Always inflate truck tires cold and increase pressure without exceeding the tire’s load capacity limit.No, for most cars a tire pressure of 40 psi is too high. You might find 40 psi suitable for some vehicles, especially if they’re carrying heavier loads or if the manufacturer’s recommendation is close to that figure. However, it’s generally too high for most passenger cars, which usually recommend between 30-35 psi.Check out these guidelines for winter tire pressure: Tire pressure of 32 to 35 PSI is appropriate for most passenger vehicles in winter and milder months. The recommended winter tire pressure will typically be around 3 to 5 PSI higher than normal. Even when the weather’s nice, tires can lose around 1 PSI per month.Choosing the Right Tyre Pressure for On-Road Driving For everyday bitumen driving, most 4WDs should run between 30 and 36 PSI when the tyres are cold. Here’s a rough guide: Light load (just a driver and a light pack): 32-34 PSI. Heavy load (extra passengers, gear, roof racks): 36-40 PSI.