AMSOIL is awesome! You will have a plethera of people on here attacking it saying it isn't TC-W3 certified blah blah blah. It meets and surpasses any and all manufacture'r requirements and does NOT void the manufacturer warrantee. I have yet to find the TC-W3 certification on either the Mercury or the Quick Silver DFI oil. It's not on the bottle, nor have I found it on the TC-W3 certified oil web page.
McCoy Fishing Line "Pro Staff"
"Catch the Dream"
2013 Allison XB21 BasSport Pro Elite
250 Mercury Sport XS