Tyre Pressures

Placard pressure vs sidewall maximum: follow your car’s placard cold pressure, not the tyre’s max. Here’s what each number means and how to set yours right.

The correct tyre pressures for sand driving in Australia: drop to around 18 psi for soft sand, slow down, and re-inflate before the bitumen. Full psi guide.

Corrugated dirt roads shake your 4WD apart at placard pressure. Here are the right tyre pressures and speeds for washboard tracks in Australia, and why they work.

Your placard pressure is a cold figure. Here’s what “cold” really means, why checking hot tyres misleads you, and the add-4-psi rule for when you can’t wait.

How often should you check tyre pressures in Australia? At least monthly, before every long trip, and always cold. Here’s the full schedule — plus the spare.

Overinflated tyres wear out in the centre, ride harshly and grip worse — especially in the wet. Here’s what overinflation does and the pressure to follow instead.

Underinflated tyres build heat, wear on the edges, burn more fuel and can blow out. Here’s what low tyre pressure does — and why it’s the dangerous one.

Nitrogen tyre fill leaks slower and swings less with heat — but for a road car the benefit is small and you still must check pressures. Is it worth paying for?

The 4 psi rule tells you if your off-road tyre pressure is right: set cold, drive an hour, then check the hot rise. Here’s how to use it in Australia.