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What is the correct tyre pressure?

Ensuring the correct tyre pressure is crucial for the safe and efficient operation of your vehicle. The proper tyre pressure not only enhances your driving experience but also contributes to the overall performance and longevity of your tyres. In this article, we'll explore the importance of maintaining the correct tyre pressure and provide you with the necessary information to keep your vehicle running smoothly.


Understanding Tyre Pressure


Tyre pressure refers to the amount of air pressure inside your vehicle's tyres. This pressure is measured in pounds per square inch (PSI) or kilopascals (kPa). The recommended tyre pressure for your vehicle can be found in your owner's manual or on the driver's side door jamb sticker. It's important to note that the recommended pressure is specific to your vehicle and may vary depending on factors such as the tyre size, load capacity, and driving conditions.


Importance of Proper Tyre Pressure


Maintaining the correct tyre pressure is essential for several reasons:



  • Safety: Underinflated tyres can lead to poor handling, increased braking distances, and a higher risk of tyre blowouts, which can be dangerous for you and other drivers on the road.

  • Fuel Efficiency: Properly inflated tyres roll more efficiently, reducing the amount of energy required to move your vehicle, which in turn improves fuel economy.

  • Tyre Lifespan: Tyres that are overinflated or underinflated wear unevenly, leading to premature tyre wear and the need for more frequent replacements.


By keeping your tyres properly inflated, you can enjoy a safer, more fuel-efficient, and longer-lasting driving experience.


Checking and Maintaining Tyre Pressure


To ensure your tyres are properly inflated, follow these steps:



  • Check the Recommended Pressure: Locate the recommended tyre pressure for your vehicle, which can be found in your owner's manual or on the driver's side door jamb sticker.

  • Use a Tyre Pressure Gauge: Use a reliable tyre pressure gauge to measure the air pressure in each of your tyres, including the spare tyre.

  • Adjust the Pressure: If the tyre pressure is too low, use an air compressor to inflate the tyres to the recommended pressure. If the pressure is too high, release air from the tyres until the correct pressure is achieved.

  • Check Pressure Regularly: Inspect your tyre pressure at least once a month, or before any long road trips. Tyre pressure can fluctuate due to changes in temperature and driving conditions.


By following these steps, you can maintain the proper tyre pressure and enjoy a safer, more efficient, and longer-lasting driving experience.

What is accurate tire pressure?


Running your tires at the correct pressure is important because it keeps you safe, cuts down your gas bill, and makes your tires last longer. Each vehicle has its own specifications for tire pressure, but most fall between 28 and 36 PSI (pounds per square inch).



What is the 4 PSI rule on tires?


If the pressure is more than 4 PSI above the cold pressure, you should add more air. That is because there is too much friction, which builds up more heat than desirable. Conversely, if they are less than 4 PSI above the cold pressure, the cold pressure is too high and you should release air.



Is 40 PSI good tire pressure?


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.



Should all four tires be the same PSI?


Yes, it is recommended for all four tires to run at the same psi levels. However, there are exceptions.



What happens if tyre pressure is too high?


When a tyre contains too much air, there's a smaller area of contact with the road. This creates a loss of traction and uneven wear. Over-inflated tyres can affect handling (especially when cornering at speed), braking, tyre noise and ride comfort.



What PSI is too high?


But you shouldn't go too much over recommended PSI. You can safely over-inflate tires by up to 10%. For example, if your tires have a recommended PSI of 35, you can go up to around 38 PSI without worry. Anything more than that is too much and not recommended.



What is the correct tyre pressure for my car?


You can find the recommended tyre pressure for your vehicle in your vehicle handbook or printed either in the sill of the driver's door or on the inside of the fuel tank flap. Your vehicle manufacturer may suggest different tyre pressures for your front and rear tyres so make sure you're aware of these guidelines.



Is 28 tire pressure ok?


Low tire pressure occurs when the outward force of air in your vehicle's tires is below the manufacturer's specifications. Tire pressure in automobiles varies from one model to another. However, most vans need pounds per square inch (PSI) readings between 28 and 35.



What is the perfect tire pressure?


Most passenger cars' psi requirement will be between 30 to 35 psi, but several vehicles fall outside of that range and every vehicle will have specific requirements. Good tire air pressure ensures that tires wear evenly, provide a smooth ride, and increase fuel efficiency.



Is 35 tire pressure too high?


Ideal Tire Pressure
Tire pressure between 32 to 35 PSI is suitable for most vehicles. However, one can go as low as 20 PSI (although that is not recommended). Anything below 20 PSI is considered a flat tire. PSI stands for pounds per square inch.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.