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The zinc based additive is for flat tappet cams only and it breaks down rather quickly. It's added to the lifter bottom to aid in break-in of the lobe/lifter and needs to be changed out with the break-in oil no longer than a half hour of run time. Roller lifters require no break-in period....so to answer your question, do NOT add it to your oil for break-in and DO use regular dinosaur juice for the break-in. Hope this helps.
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