These days most engine oils are zinc free which is a anti wear component for older engines which is detrimental for engine longevity in your aircooled Porsche. Brad Penn Motor Oil, PennGrade1’s power comes from its base: Pennsylvania-grade crude oil, long recognized as one of the best worldwide sources of high quality lubricant base stocks. Known for its green color, track record of proven quality and exceptional ability to cling to metal, this stock is tenacious. It minimizes wear when stressed, even during dry or cold starts.
It has a long history and track record of proven quality.
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