Anyone bored enough to look at my spark plugs?

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Oct 7, 2016
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I've looked at a dozen charts, and still not sure...reading lean or with oil deposits?
I'm guessing these plugs have 10-15K on them. heat range looks OK? #3 looks the worst? #1 had oil in the tube. The rest were dry.
I have new tube seals.
Throttle body is now clean as a whistle.
What's next?
LCplugs.jpg
 

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