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As long as the metallic flakes are not chunks then you're fine, totally normal. I normally see what looks like tiny metallic splinters the first oil change, which I always do after breaking in the rings. I stick with non-synthetic until at least 500-600 miles, but that first oil change is always after first running with some load, say 50-100 miles. As for the cylinders with some 15% leak, where from? If from the valves, more running may or may not resolve.
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Last edited by lvporschepilot; 09-24-2020 at 05:56 PM..
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