Today I was at a Autozone store looking at oil filters. I compared the Mobil 1,the Bosch and an STP. All 3 of them had identical cases and from what I could see identical internals. The all had the same pressure relief valve inside and the same metal mesh that you could see from the top. The bases were identical as were the gaskets. Does anyone know if there is truly a difference between them? The Bosch sold for $5.99 and the Mobil 1 was $12.99. I don't know what the STP went for.
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93 NX2000 auto, advanced timing, Hiper Flow POP filter, new motor mounts, 99k miles.
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93 NX2000 auto, advanced timing, Hiper Flow POP filter, new motor mounts, 99k miles.