We have 8530 miles on our bus with 5500 miles on the last oil change so I decided to change oil again. When checking oil level after the change I noticed an area about 6 inches long on the dipstick that had burned/crusted oil. Also the dipstick has started to show some lite rust on the top quarter of the dip stick. The engine has not been using/burning oil and has run trouble free all across the country. Has anyone else seen unusual stuff on there dipstick?
Bob