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Reply to "Engine Break-In"

Buster,

Letting oil blow by the rings is not how you want to lube your upper rings. Oil is retained in the fine scratches of honed cylinders and in the pores of exoctic cylinder linings. That's how the rings get lubed (or at least, should get lubed).

It is impossible to completely seal the rings to the cylinder. No matter how well the break-in is achieved, some blow by will occur. A good break-in will minimize it, but not completely eliminate it.
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