Originally Posted by flowrider

^^^^OK I said what works for me I'm talking about a 4/5 lb increase over the recommended 33PSI or a little over 1%. In a redial tire. This is not over inflation. My PS4S are rated to 50 PSI. Over the course of my driving experience I have found that a bit more pressure than specified by manufacturers for the average joe, works best for me. And again, in a radial tire, contact patch would remain the same with a small pressure increase.

And in normal driving PSI increase by 5 or 6 PSI, more on very hot days - just sayin'