Wifes 3.0 Aerostar uses a quart every 1300 miles. It's almost like it always has fresh oil. Last OCI at 6000 miles the blotter looked very good. Kind of hated to change the oil. Probably could get away with never changing and just spinning a filter every 5000 to 7000 miles. Of course an occasional UOA would be a good idea if I were to go to the never change routine.