Im a complete motor-head but open an oil filter? Google can show me a cut-away view of nearly any filter out there. You'll be surprised to see they are nearly identical. The bypass valve might be positioned differently due to OEM beliefs but no one has any magical distinctions in their construction. Now if you tell me there is loose change in my filters I might be so inclined to cut one open. Other than simple curiosity seem kinda senseless. Here the wix and the motorcraft are the same cost so is amsoil, purolator...the only real distinction is the K&N but when I decide to race my RV I'll spring for a $10 filter...then I'm certain my engine will NEVER fail!!
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