My co-worker has a 2013 impreza sport limited from Grand Prix dealership. He got free oil changes for 1 year. Monday he went to the dealership to get a free oil change. Picks up his car drive 13 miles home and when he gets on his street the oil light came on. He checks the dipstick and it was dry. He calls the dealership and they send out a tech. He puts in 4qts of oil!!!!!!!! Now hes wondering what kind of damadge has been done to the engine. Not sure if anything can be done, since the engine sounds fine.