"2 Volvo TAMD60B engines. The PO used NAPA 1158 oil filters" My President has twin TAMD60C Engines, So I am not sure whether this is applicable, but I use Fram PH3306A oil filters. Written in the manual by the PO is that the following are also correct filters: AC PF912 Purolater L40110 WIX 51797 Motorcraft FL305 NAPA 1797 Cole