All right, I just got my new 17 inch rims put on yesterday with Falken tires 205-45-ZR17 model ZE-502 . The guy at Discount Tire Company said to keep all the tires PSI at 40 psi. My car specs at 32 front and 29 rear. My friend said that 40 psi is awfully high and that I would wear out the tires faster. What PSI should I keep my tires at?