PE00-020; WILDERNESS AT P23575R15 DOT VN ORIGINAL EQUIPMENT FORD EXPLORER SPORT 1998, LOOKS LIKE THERE IS LINE GOING AROUND THE EDGE OF TIRES, LOOKS LIKE SMALL FINE CRACKS ON ALL 4 TIRES. ALSO ON ONE OCCASION DRIVING AT APPROXIMATELY45-50 MPH DRIVER'S FRONT TIRE TREAD STARTED TO SEPARATE AND A LITTLE CHUCK OF TREAD CAME OFF, CAUSING A LOSS OF VEHICLE CONTROL AND VEHICLE RAN INTO A DITCH.*AK