Quote:
Originally Posted by DARDO
I just got my new X3 35i, with the Dunlop Sport Maxx 245-50 R18 Run Flat tires, what is the right pressure, as I got it with 30 Psi, but the recomendation on the door says 27, and the dealer, whom I just called said 35
what to do?
thank you
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Your Owner's manual should specify pressures of 32 psi Front and 35 psi Rear for those tires at sustained speeds of under 100 mph with an average load.. the F/B differential is important. My 35i handles significantly better at 34 F and 37 R.
For higher loads (more than 3 pass.) or for higher speeds, the pressures should be raised, but you should still maintain the F/B difference.