I have a 2008 620i gator it has around 1000 hrs on it. the only issue i have had up until now is fuel filters. but i was checking the oil and it was way over full and milky in color but it smelled like gasoline. i changed it out and have been running it and no problems. it runs like a champ has never gave me any problems what so ever and we use it like it was meant to be used everyday. it has been used but not abused. any thoughts?