Swepco 306
Written By Travis Pollock
Zinc and Phosphorous are important additives are crucial to the air cooled Porsche and beneficial to any car....water or air cooled. This product has high levels of Zinc and Phosphorus as well as including over 5 times the amount of the anti-wear additive Boron as the new reformulated SM or CJ-4 oils.
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Mobil 1 0W-50 Racing Oil