oil and zddp

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quote:
Originally posted by crimsontide: which oil has the most zddp???
Currently in PCMO's Synergyn " both 30wts and the 15w-50 " Mobil 0w-30R Citgo 10w-30 Ultra Life dino all over 1400 ppm Castrol Syntec 10w-40 comes in right at 1300 ppm If your speaking of OTC oils only Citgo Ultra Life Mystik Gasoline Formula 5w-30 Motorcraft 30wts all over 1200 ppm for now [Smile] The question might be what oils have the lowest zinc/phos Pennzoil yellow bottle Valvoline All Climate and on and on
 
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