AMSOIL is the way to go filter and oil but still change it every 3000 miles religiously like a priest that is the only way to keep from having to rebuild that turbo every 10000 miles and always always always check your levels every time you get gas or even every morning when you get in your car turbos are tempermental a one quart drop could make you blow seals I have done it before but I have run many oils and synthetic definatly but I choose amsoil