Vessel Info: 1987 Carver 28 Voyager,twin small blocks,1991 Shamrock,350 Chevy now. 1973 Atlantic Craft 15, 2004 2 smoke Merc 40, and a few other water toys
Mike
I'd Rather Be Boating!
1989 Sea Ray Seville
1986 Carver Mariner 32'
1990's Thompson 22' Cuddy Cabin
1990's 4Winns 245 Vista Cruiser
1980's Thompson 19' Open Bow
15w40 is basically a universal warm temperature oil. Can be used in almost anything that does not see winter temperatures. I used this in my Merc 7.4 as well as the 383,s not to mention my Wave Runner and my classic 1996 Mercedes SL ragtop and obviously in my present day Volvo diesels. No issue using this in your Crusaders.
Cheers, Hans
2007 Carver 41 CMY
Twin Volvo D6-370's
Montreal, Canada Midnight Sun I Photos