These are some of the best filters I've used. While not as expensive as other brands, they perform up there with them. The PL44872 is a great filter for the 7.3L Powerstroke diesel. It filters finer than the regular Purolator and has a rough coating on the surface that helps keep a grip even when some oil drips down the outside of the filter. That helps a lot.Per oil analysis, my 1997 Powerstroke is doing great with this filter in use. I would recommend it to anyone that wants a better than stock oil filter, but doesn't cost an arm and a leg.