<span class="highlight">Tyre</span> <span class="highlight">Pressures</span>

Thanks alot,just what I needed to read, happy safe travels.
Cheers Steve

Thanks heaps Paul,
Great to read something thats not to complicated, It all makes sense.
Cheers Steve

Too much speed and too much pressure will cause blowouts also due to carcass fractures caused by the high impact loads. Also the damage can lie 'dormant' for some time until you hit the bitumen again and the higher speeds generates more heat which may cause a tread separation. This can lead you to think the tyre had a manufacturing fault if it failed on the black top when in fact the damage was due to rock or pot hole impact on the dirt.
Also if going outback do not use tyres over 6 years old

Paul

Best description I have read of the 4psi rule. I dont use it myself but well done.

Phil

Cheers Mate,
Thanks for the great info, will take it all on board.
Cheers Steve

You are right of course Blown4by, but the thread was about sandy and corrugated roads & tracks.

If there are really sharp rocks (especially flint & limestone), lower your tyres until they are just standing up and the car rocks on them when you push sideways on it and don't get out of 2nd or 3rd gear (ie about 30km/hr max) is my best advice.

On the Nullarbor, the bottom end of the Connie Sue Hwy or the road north of Loongana up to Tjuntjuntjarra were the worst for this I've been on. We once had 6 flats in the first 40-odd km going up to Tjuntjun without the tyres deflated but on the way back, following the above advice, none. Of course, it goes without saying that you MUST RE-INFLATE once you get off that terrain and want to drive a bit faster. I think the bottom of the Connie Sue has been sheeted with gravel since, so it might be a bit better.

Since then, I've been in numerous situations where people have refused to lower tyre pressures and/or slow down and paid the price in tyres and time changing and fixing them.