thats why I changed the oil at 25 miles ,. 50 miles 100 miles 200 miles, 400 miles and the dealer did a change at 600 miles, I did not do the the gear oil change , so the dealer did it at 600 miles,.at 1,000 miles I changed oil and gears # 90 and I was surprized to see so much crap in the gear oil ,. I changed it hot,the dealer did it cold, what a difference,.