tyre pressures

gday jaksun.
we usually run34-36psi(cold) when we fit them to customers cars.
but different cars have different weights so usually get them to comoe back after 5000ks to see if they need a little more or a little less then every 10000ks after that.—~‘¬‘¥•s’B

There can never be a definitive answer to this question as your pressures should be constantly changed to accomodate load, surface etc. If your not making adjustments for these factors then budget for tyre replacements on your next trip over some gibber.

For bitumen running take the pressure cold, then take it again after a fair run. If the increase is 4psi you had the correct starting pressure. If they've gone up more you started off too low. If they've gone up less than 4 you started off too high. Keep adjusting until you get it right. But that's just for on road. If heading bush don't use that system. It's a totally different game off the tar and as stated above there is no simple answer. The load and road surface will dictate what pressures to run.