Driving in left lane on us 1 south bound in south brunswick, nj at the speed limit. heard sound like a backfire or shotgun go off. dash board showed loss of tire pressure right rear tire. pulled over into empty parking lot. sidewall had exploded. tires had recently been rotated by dealer. all tire pressures were set to 35 psi. tires have approx 6,600 mile use. veh. not driven much as i am retired. these are oem goodyear 265/60r18 tires.