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Quaker State 10W30 Defy, API SL synthetic blend (lab tested 2012)
NOTE: An API SL rating is for 2004 and older automotive engines. This rating was replaced by the API SM rating at the end of November 2004, when the 2005 models were already available.
Silicon = 3 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 170 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 8 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2652 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2830 ppm
Zinc = 1221 ppm (anti-wear)
Phos = 955 ppm (anti-wear)
Moly = 99 ppm (anti-wear)
Total anti-wear = 2275 ppm
10W30 Joe Gibbs HR4 Hotrod Oil = 86,270 psi
(16.9% below no.1)
zinc = 1247 ppm
total detergent = 3134 ppm
detergent ppm/zinc ppm ratio = 2.5
15W50 Mobil 1, API SN = 70,235 psi
(32.4% below no.1)
zinc = 1133 ppm
total detergent = 1437 ppm
detergent ppm/zinc ppm ratio = 1.3
10W30 Royal Purple HPS (High Performance Street) = 66,211 psi
(36.2% below no
zinc = 1774 ppm
total detergent = 3676 ppm
detergent ppm/zinc ppm ratio = 2.1
Super High Camshaft ZINC oil is available and very important for newly rebuilt engines with new flat tappet components
detergent ppm/zinc ppm ratio = 2.7