Well in your circumstance it did not work for you. Why not play around the pressures until you get to a pressure that is as high as possible with out creating adverse handling? Are those the tires and wheels that came with the car???VW GTI w/ 18 inch summer tires
#2
Doorjamb pressure for my car is 38 psi in all tires, sidewall is 45. I decided to fill them all up to 45 for the hell of it last time I got gas. This is where I what expected did not happen at all, my car behaved completely differently. In addition to the TPMS light constantly being on and the ride going to complete shit, I found my traction incredibly reduced. The traction control light and stability lights would come on much more than would before (almost never). I also found it hard to get traction in 1st gear at lights, it seemed to skid almost all the time. I don't have shitty tires (P-Zero Nero) so that was not a problem. I did notice my MPG go from 26 combined to 28, but the loss of control that came with it was not worth the savings. Needless to say, I aired them down the same day.