Ive been doing some research into stp oil filters. I have one and never used it, yet...Autozone sells them for $4. The box says 95% efficient, but with no microns. Iwas just looking at autozones webstie, and it says, in description, before reviews, catches up too 4x smaller than what the human eye can see. Thats around 40 microns.
At autozone, it is on the shelf, next too the fram extraguards. Those are rated at 95% @ 20 microns. What microns, do stp filters micron at and down too>? napa golds are 37 microns, fram orange cans 20 microns, napa pro selects 30-40 microns, purolator and pureone, 40 microns. i say 40 micorns on the purolators, because i use the smaller filters, PL 14476/77. the boxes say 40 microns....which is not terrific filtering at all.
what microns, for stp oil filters?
At autozone, it is on the shelf, next too the fram extraguards. Those are rated at 95% @ 20 microns. What microns, do stp filters micron at and down too>? napa golds are 37 microns, fram orange cans 20 microns, napa pro selects 30-40 microns, purolator and pureone, 40 microns. i say 40 micorns on the purolators, because i use the smaller filters, PL 14476/77. the boxes say 40 microns....which is not terrific filtering at all.
what microns, for stp oil filters?