Fluid Change Intervals
Every 100,000 miles, oil should be drained, oil pan removed, screen cleaned and fresh fluid added. For vehicles subjected to more severe use such as heavy city traffic especially in hot weather, prolonged periods of idling or towing, this maintenance should be performed every 15,000 miles.An early change to a darker color from the usual red or green color and/or a strong odor that is usually associated with overheated fluid is normal and should not be considered as a positive sign of required maintenance or unit failure.