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Original Owner
Join Date: Dec 2002
Location: San Antonio, Texas
Posts: 1,907
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Depends....does your air cooled have a catalytic converter? Is your available street gas ethanol blend or are you even running E85 for some mods you did?
Or are you driving a pure factory pre cat car?
Best to follow the API Service Categories for your specific vehicle and use.....one size does not fit all.
API-SJ may be perfect with its high HTHS. But maybe you need high Zinc......
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tsuter
78 911SC Turbo Targa
Thaaaats Right!!
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