Read an article about oil today in Sport Rider. That actually put kind of a new spin on what oils I thought where good and bad. It was the first truely objective look at oil that I've seen that was done in a scientific manner. Short of the story is that not all oils are the same that synthetic is better then dino oil, and beleive it or not, some "Motorcycle" Oils are really different then "Car" oils, and not the same stuff in a different bottle. The article made me happy with my choice in oils, and might change your mind about what's in your bike.