I have a 2001 2.4T with the optional Pirelli P6 235/245-17 tires. The sticker inside the fuel filler door suggests 38 psi inflation, but the sidewalls say that the max pressure is 51 psi.<P>The car rides and handles noticeably better with the tires pumped up to 45 psi or so. I get better gas mileage too, so I'd prefer to keep them at the higher pressure if it's safe.<P>Does Volvo know something I don't? Am I OK at the higher pressure? I've read some stuff here about tire bubbles on the Pirelli's, and I don't want to do anyting to increase the risk.<P>Thanks in advance.