1989: Mario Andretti qualified 5th and led the race on lap 35, but soon began experiencing mechanical issues. On lap 90, Mario was forced to the pits to diagnose a throttle problem. After a four-minute pit stop to make repairs, and after losing several laps, Mario returned to the track. Mario charged through the field, and found himself running 4th at the finish, albeit 7 laps down, which is considered an unusually large deficit for fourth place in the modern era. The 1989 race marked the first year he was teamed-up with his son Michael, who blew an engine while leading.