Making sure your tyres are correctly inflated can help you use less fuel and be safer on the road, and your tyres can last longer too! Tyres lose around 1-2psi per month (3-6%) naturally, so it's important to check them at least once a month and before long journeys. For car drivers, fuel savings of up to 10% are possible through simple actions like driving smoothly and maintaining the right tyre pressure. An average household spends about $3500 each year on fuel so a 10% saving is worth having!
Do you know what tyre pressure your car's tyres should be? Use our tyre pressure tool to find out for your car:
Our tyre pressure tool covers the majority of vehicles that have been nominated as appropriate by the vehicle manufacturer. You'll need to check that your car’s tyre size matches the above before inflating your tyres to the recommended pressures. If your tyre size isn't included in the results, then that tyre size mightn't be suitable for your vehicle. Either way, your best bet is to check with the manufacturer of your vehicle, or consult with a reputable tyre dealer - there are heaps in NZ!
There's a couple of steps involved:
1) Unscrew the valve cap, but don't lose it! Pop it in a safe place like your glovebox.
2) If you're using a pump with in-built tyre gauge (like the ones at our Z stations), enter the correct pressure into the air pump and keep the tyre gauge pressed into the valve system until the air pump beeps.
3) If you use a manual foot pump, or the pump does not allow you to pre-select the target pressure, check the pressure first (you could use a pocket gauge) and then adjust it if needed. Press the tyre gauge onto the valve stem. There might be a slight hiss as you press down on the valve stem and again as you release it. You only need to do this for a second or two, long enough to get an accurate reading. If the pressure needs adjusting, inflate or deflate your tyres accordingly. If you turn the gauge’s head around, it will press your valve in and allow you to deflate your tyres. If you are using a foot pump, pump away and check from time to time to see if you have reached the right pressure.
4) Screw the valve cap back on the tyre, and repeat with all your tyres (and remember to check your spare tyre, too).
Or, you can always ask one of our Forecourt Concierges - they are there to help 10am – 5pm every day and they know how to use our air pumps. Just bring along your car's correct tyre pressures and we'll be happy to help you out!
Tyre pressure data is currently available for light vehicles (weighing less than 3.5 tonnes) manufactured from about 2000. Our tool has tyre pressure information associated with a range of tyre sizes for the majority of those vehicles. If the tool doesn't give you a result, it'd be great if you could let us know as we are continually extending the database.
The correct tyre pressure for your vehicle can usually be found on a plate located on the driver's door, inside the fuel filler flap or in your vehicle handbook.
These are all ways of measuring units of pressure: pounds per square inch (PSI); kilopascals (kPa) and bars (no abbreviation). It doesn’t matter which unit of pressure you follow to check your tyre pressure, as long as you are consistent across all your tyres, and that this is consistent with the tyre pressure gauge you’re using.
Best bet is to increase your tyre pressure in line with the vehicle manufacturer’s recommendations. If your vehicle handbook doesn't have this information, a rule of thumb is to add 4psi (28kpa or 0.28bar) to the recommended pressure.
Yes, it does. It is a safety risk to over or under-inflate your tyres. Overinflating tyres can adversely affect vehicle manoeuvrability, make the ride harsher, and sometimes lead to loss of control and crashes. Underinflating tyres can result in tyre stress due to overheating, irregular wear of tread, tyre failure, and sometimes loss of driver control and crashes.
We've worked with our partner EECA (Energy Efficiency and Conservation Authority) to make every effort to provide accurate tyre size and pressure information. However, the accuracy of the data cannot be guaranteed and you should consult your vehicle handbook, talk to your local garage or tyre specialist if you have any doubts about the information contained in this tool. All of our Z Stations have contact details for a local mechanic in their neighbourhood who may also be able to assist with this information too.
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