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Castrol GTX Magnatec for flat tappet break-in?
As the title states, I've been seeing lots of commercials for the new Castrol GTX Magnatec oil. They say it protects your engine for the crucial first 20 minutes of run time which would suggest it is suitable for a flat tappet cam break in time. Just wondering if anyone has any experience with this oil for a flat tappet cam break in as I cannot find any zinc/zddp content info.
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