Re: oil and instant fouling
Oil consumption is high at least 1/2 quart in 300 miles. The rattle is heard while cruising with light throttle, I would expect, if it were pinging I hear, to get worse under greater load which I don't. It goes away. Since compression is 155-160 per cylinder including the suspect one it would seem to me that the valve seals and rings are doing their job. I agree that the initial thing would to do valve stem seals. Just that I always open the 'can of worms' lol
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