Priced per quart.

We've all heard of Swepco Gear Oils, they've been standard issue for Porsche since the 935 was raced. So why should you consider Swepco Motor oil? Zinc and Phosphorous are important anti-wear additives that have been drastically reduced by many of the newer SM oil formulations. These additives are crucial to the air cooled Porsche and beneficial to any car....water or air cooled. Swepco's 306 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.