I can’t call them great because they appear to be all around good. It’s what should be expected from any typical manufacturer of oil filters. I’d call their highly efficient high capacity full synthetic PG63798 Harley Davidson oil filter great but I can only give PG partial credit for constructing it as they don’t make the media but source it from an American manufacturer (I thought it was champion labs but not sure). Even so it’s just my opinion of what is considered great. Don’t look to me to sway your decision one way or another on “making it the primary filter” for your Vette and your fiancé ´s Compass.Nope. I have not used, touched, or even seen one. On paper, they seem great. I´m seriously asking what makes them not great? Do they have a particular weakness or downside? I´m wondering because I am considering making it the primary filter for my Vette and my fiance´s Compass.
So you said it, now please ´splain it.
I do use some of them and haven’t found anything wrong with them yet.