When picking a gauge, keep in mind that accuracy is important. A good, reliable tyre pressure gauge that produces accurate readings may be had for a few dollars. If you’re still undecided, ask a skilled technician which one he or she likes. A digital tyre pressure gauge at Sydney Tools will give you reliable readings, but keep in mind that it is battery operated. It’s advisable to go with a conventional gauge if you think having to change the battery would keep you from utilising it.

If you limp into a gas station with a completely flat tyre, you’ll find that as you start filling it, the tyre gauge on the aircraft displays practically zero. Even if air pressure exists in the tyre, the gauge would display 0 if there was a big hole in it. Why does the gauge show a value of zero?

There’s nothing mysterious about this.

Tire gauges are simply constructed to indicate zero when the pressure is equal to atmospheric and positive when the pressure is greater. It’s preferable to use your own tyre gauge rather than the ones linked to air hoses at service facilities. They’re the most likely to be weathered and incorrect of all the pressure gauges on the market.

Maintaining adequate tyre inflation is a basic process that is critical to your vehicle’s overall tyre performance. In comparison to a poorly inflated tyre, a properly inflated tyre will give longer life, quicker steering response, improved fuel efficiency, and a smoother ride. Both underinflation and overinflation can result in problems such as early tread wear and tyre failure. Checking your tyre pressure on a regular basis is the best method to guarantee you’re getting the most out of your tyres. It’s easy to figure out how to utilise a tyre pressure gauge.

Start with cold tyre

The PSI – or “pounds per square inch” of pressure – specified by vehicle manufacturers is based on the assumption that the tyres are cold. When a car has been parked for three hours or longer, or if it has been driven less than a mile (1.6 km) at a moderate speed, the tyres are considered cold. PSI is the measurement unit used by your pressure gauge.

Check the recommended psi by the manufacturer

Find the recommended cold tyre PSI for your front and rear tyres on the driver’s side door jamb or in your owner’s handbook. If you can’t find it, talk to your car dealer, the manufacturer, or a trained tyre technician.

For each tire, write down the psi.

If your front and rear tyres require different pressure levels, write down the appropriate PSI for each so you don’t get confused while checking tyre pressure.


Fill any low-pressure tyres with air using an air compressor. Because each air compressor is unique, read the instructions carefully to ensure you’re operating it appropriately.

If you’re using an air compressor at a petrol station, make sure you park your vehicle so that the hose can reach all four tyres. Replace the coins in the machine until you hear the motor turn on. Place the end of the hose onto the valve stem and press the lever to fill each tyre.

If you use a gas station air compressor, your tyres may become “hot.” If you need to alter the inflation pressure while the tyres are “hot,” set it to 4 psi (14 kPa) higher than the suggested cold inflation value. When the tyres are new, check the inflation pressure again.