Mobil 1, Amsoil, Royale Purple, and several other brands... All have a large line of oils, and each has their own oil filter. I wonder how many of us use any of these products because we can stay "brand loyal" and also get an oil filter with the oil's name on it? Not necessarily a bad thing, but with the "fanatics" on BITOG, is it a "smart" thing? I have to admit, if Red Line had their own filters I would be tempted to give up my PureONE for it, even though I would probably lose some efficiency.
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