I've asked this question before...

goufgators wrote:
A number of you responded a few months ago to the following question and I've tried to pull the topic back up but been unable to locate it. So, please allow me to restate the issue: Based on weights, I need to run close to 90psi. But, if I air up to 90 cold, a few miles down the hot Florida roads, psi increases to 100 to 105. At that increased psi, steering becomes difficult...wandering. Now..question...is there any reason I cannot (or should not) air up to say 80 psi cold knowing within a few miles the psi will be right where I need to be at 90 psi? I recall that when I posted earlier, some comments were pro and some con regarding doing this. I can't recall what the consensus was and would like for you to weigh in again. Thanks!

Just to clarify for you, when you figure out where your tires are supposed to be, that figure is for cold tire pressure. That means the fact that the tires will heat up and the pressure will increase is already factored in. If cold PSI is supposed to be 90, that means they want the running PSI to be at 100 or so.