PennGrade 20w-50
Written By Travis Pollock
This product delivers excellent shock load and high temperature protection to heavily stressed engine parts. It's 1,500 ppm Zinc and 1,340-1,400 ppm Phosphorus contents provide the needed anti-wear protection to critical engine parts, such as piston/cylinder walls, roller cams under heavy valve spring pressure and especially those that employ a solid “flat tappet” type system.
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Mobil 1 0W-50 Racing Oil