Nitrogen in Your Car Tyres.

Is it Worth it?

Because Nitrogen doesn’t leak as easily as air, Nitrogen gives a more consistent inflation. Having said that Air is 78 percent nitrogen and just under 21 percent oxygen, so the advantage is pretty small. Commercial aircraft tyres are required to be filled with Nitrogen; but that’s not about performance it’s about safety. Nitrogen is non-flammable and commercial aircraft braking systems can overheat.

So what’s the benefit?

Well, if you’re a F1 driver the extra half a second per lap from consistent tyre pressure it’s worthwhile. For road users it’s pretty much all fantasy.

Nitrogen doesn’t respond to temperature changes any differently than Oxygen, remember air is 78% Nitrogen anyway. You still have to check your tyre pressure just as often. Nitrogen is no substitute for proactive, regular tyre care and maintenance. Major tyre manufacturers do not prefer air or nitrogen—both are acceptable gases for tyre inflation.


How to Tell when Tyres Need Replacing.

Here’s how to check if your tyres are still legal.

Turn your front wheels out so that you can clearly see the tyre tread. Look for the Tread Wear Indicators, which are small blocks of rubber moulded into the tread grooves at regular intervals.

If these Blocks are level with the tread then it’s time to replace your tyres. The minimum legal tread depth is 1.5 mm across the width of the tread. Which is what the Tread Wear Indicators show, but you shouldn’t let the tread get that low, RACQ and some car manufacturers recommend you replace your tyres before they wear to that extent.

Uneven wear

If your tyres show uneven wear, more wear in the middle or edge. Then you have Tyre pressure or Wheel balance or Wheel alignment problems or worn suspension. Best to bring your vehicle into Rayner’s Tyre Centre Nambour for an expert opinion and how to fix it.

Tyre Age

If your tyres are old, maybe a spare car you don’t use often, check the age of the tyres. A tyre’s age can be identified by checking the manufacture date stamped on the sidewall, usually in the form of a four-digit number, where the first two digits represent the week of manufacture and the last two digits the year. See Photo Below

Tyres more than five years old will not perform well, tyres ten or more years old need replacing. Even if they have plenty of tread because the tyre rubber hardens over time. This loss of suppleness reduces performance dramatically, especially in the wet.