Pure one's are the best for the money but
The only knock I have heard on the pure one is a year or so ago on bobistheoilguy and it was discussed that the pure one's valve may stick if used below freezing and that it may filter too well and cause a restriction. Do not know if either or these items have been documented. I used pure one for years with very good results. I now use Mobil 1 and Amsoil but can not say that they are better but they do cost much more...
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