i HAVE A 300I DOWNTOWN AND THE MORE MILES I PUT ON IT THE BETTER IT RUNS, 47,000 KM. SO FAR , I CHANGE THE OIL EVERY 2,000 MILES, and I use full syn. mobil 1 5W50, in all my toys, my van has 240,000 miles on it and runs like new,. dont drive it much since I got the scooter , but every few years I take a coast to coast run to see my family 81 years and ride every chance I get,. second child hood now I got the toys I like,.