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Good day everybody! While doing my annual inspection I noticed oil fowling on #1 spark plugs. Peering through the plug hole I see lots of carbon on the piston dome.The rest of the cylinders have some carbon, but not much.The other plugs are not fowled. Compression is still good, and the engine is running good. I'm running premium auto gas, and aero shell sport oil. 360 hrs. On 2009 engine. I operate in a cool climate, summer only. Thanks for all replys! 103
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