I am using a FS2500 bypass filter on mine. It was the simplest of all the units to install (under an hour), as each kit is made based on your engine and truck combination. Excellent steel braided oil lines, has a port for doing a oil sample included.
I like Schaeffer synthetic oil. Much cheaper than Amsoil and they deliver free to my house (unlike Amsoil), and also include free oil sample kits (unlike Amsoil again) when I order. And they have been at the oil game longer than any other company in N. America... since 1839.