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There is a big disparity in filter quality - but then there always has been. If you have ever actually cut some appart and compared things like wall thickness, base plate thickness, crimp quality, filter media, visual flow paths, base gasket retention, you would be shocked at the quality differences amongst some name brands. If you are not paying over $10 for your oil filters, you are buying junk - in most cases. They will usually work fine in your normal every day driver though - maybe only one out of ten will leak I like Moroso, K&N, Mobile 1, to name a few quality oil filters. There are still no guarantees when you run high oil pressure.

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