ok, so i was reading something and this guy says ""Changing the filter in my car to a version with both inlet and outlet anti drain valves made a difference on cold starts after sitting for 2 days, no light tapping for the second after starting."" is this a thing?! i know that some oil filters have an ADBV, and i guess i just assumed it was on one side only, and now that this guy said it this way i'm just NOW realizing that if they have an ADBV, then just naturally means it's always both inlet and outlet. anyone wanna clarify?
he also said ""Went from a Z88 to a Z157, otherwise identical filters.""
i tried googling z157, and well it wasn't as clear cut to find that filter. i dont know what brand that would be or if anyone makes that size.