The 670 I received had its oil tubes filled with Amsoil and plugged together to maintain priming. To some fools, the amber Amsoil looks like 30 weight, and that can launch a thousand baloney rumors, now resurfaced by Mr Anonymous, TY2068.

Rotax Rick and others suffer at the hands of people who "were told" and who have no idea what they are saying, but who can slur the reputation of folks with anonymous ease.

Rick makes clear in all his communications that top end 2 stroke oil is a must on his engines. I can verify that.