Thanks for all the replies. Looks like I will stick with the Yamaha oil. Problem is the dealer is about fifty miles away. Guess I can stock up heading north this year. And yes I hear that Yamaha makes a great motor. Thanks Guys. But wait! Doesn,t the new Viper look a little like a cat? (had to throw that in)
I am not trying to over think it; just did not know. This is my first 4 stroke and want to get ready for the season soon. Sounds like I should pick up a spare quart and a couple of filters and that should last me a while. The sled I bought has 108 miles on it so the next oil change won't be for a while. Thanks for all the great feedback.
Am I the only one that would change the oil and filter now since it hasn't been done since the sled was new in 2008? It may not be necessary, but I would do it anyway.