It is interesting how much tyre pressure varies, from summer to winter. Driving for an hour with the sun on the same side of the car, easy to do in Australia. 3 to 4psi just from the sun alone.


One really useful aspect is that you know what each of your tyre pressures are. Then you notice one tyre down 1 - 2psi out of character.

It's gone down slowly so it's not an immediate issue. When you are in a safe place or get home, you look at the tyre. Half a dozen times to date it has been a screw. Often the leak was so slow we just left the screw in the tyre & deal with it later. When travelling around Australia we were airing up & down all time.

When stopped for a few days in a remote area we would pull the screw out & plug the tyre.

We often let the tyres down to 24psi. So we had set the TPMS +- 8psi alarm midpoint to 30psi (2psi increments) which was high enough for road pressure, warming up & the sun, in general.

If we were on sand we dropped the tyres to 20psi. The next morning with very cold weather the pressure dropped a bit more. The outback you have very hot days & zero °C at night, so psi is all over the place. Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Just a driver wrote:

Just watched Harry’s garage very interesting on EV worth a watch.

😂