Car was running and began to leave store parking lot, car was knocking, and then entire car stopped working-power steering, lights, brakes. car would not start again. after tow and diagnosis, the engine would not turn over. no oil was found in the engine. the oil light had been intermittently lit on hills but was not on consistently. car had been knocking intermittently the week prior. technician said that it was possible rod failure. there were no oil leaks under the car. there was no unusual smell until it died. oil had been changed less than 3 months prior.