I have no doubt the filters are good. As one who knows a bit about the Endurance Line that Donaldson has sold for about 5-7 years. It is a good filter.
And actually the Endurance media is an offshoot from their Duralife Division which is their hydraulic end of the Donaldson product line. So the media style has been around a bit.
Because the "high end" market for consumer oil filters is limited ( and profitable)it makes sense that Donalson expand to allowing the media to be private labelled for Amsoil. First, because Donaldson is a no-name non-starter in automotive car filters. That's not their fortay. Second, it lowers their cost of media by increasing the volume. So it allows them to make more off their Endurance product line on the heavy duty engine product offerings. So it's a win-win for them.
And actually the Endurance media is an offshoot from their Duralife Division which is their hydraulic end of the Donaldson product line. So the media style has been around a bit.
Because the "high end" market for consumer oil filters is limited ( and profitable)it makes sense that Donalson expand to allowing the media to be private labelled for Amsoil. First, because Donaldson is a no-name non-starter in automotive car filters. That's not their fortay. Second, it lowers their cost of media by increasing the volume. So it allows them to make more off their Endurance product line on the heavy duty engine product offerings. So it's a win-win for them.