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Did you do that test with the engine fully warned up? A said, the numbers are very good especially if done all plugs out and fully open throttles. If you've never done the valve clearances on this engine you won't know, but the small reduction in the exhaust valve clearances could indicate that the seats are starting to recede a bit. Set the clearances to perfection and then recheck them after 5k miles to see if there are any changes. Are you using lead additive?
Numbers that high should also indicate that your oil consumption is virtually nil between changes. Correct?
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