Synthetic oil

[heikki]

It's strange why in my manual it shows to "only" use mineral. I like the Amsoil because it smokes less and does'nt stink as bad.

ON the back of the shell ultra bottle it states "to be used in ALL snowmobile engines.....particularly those with high perf engines"

things to keep in mind as there is still mineral oil in any synthetic.....

and regular shell advance is another alternative....but if your bent on using amsoil......great

one thing is for sure....this an oil thread.....and we all have favorites