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I was told that AMSOIL Super Duty Oil Filters are inferior to “Wix (Napa) filters that costs half the price!” Is there any truth to this?

April 26, 2017AMSOIL costs duty filters inferior Napa Oil wix

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I was told that AMSOIL Super Duty Oil Filters are inferior to “Wix (Napa) filters that costs half the price!” Is there any truth to this?

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In regard to AMSOIL Super Duty Oil Filters being inferior to Wix (NAPA) filters based upon visual inspection, AMSOIL Filters have an inner beauty that’s not visible to the human eye. Unlike the person who made these comments, the Society of Automotive Engineers recognized that filter performance cannot be evaluated by visual inspection. Therefore, they created the industry standard SAE HS806 test for evaluating oil filters. The SAE HS806 test evaluates particle removal efficiency and contaminant holding capacity which are the two main functions an oil filter must perform. As you can see from the following charts, AMSOIL outperforms the competition in both areas.