Amsoil SDF88 Oil Filter (SDF88) Amsoil SDF88 Oil Filter is for a Ford 6.0/6.4L Power Stroke Diesel Pickups. Features cellulose media designed for OEM-recommended change intervals. Replaces Donaldson P550528 and WIX 57312. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.