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Long Term Carbon Deposits

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How’s everyone’s intakes doing?  I’m approaching 80k miles and weighing doing a mechanical cleaning.  I think a Crc or Seafoam is out of the question as I had a cat issue when I did it at 30k and haven’t done it since.  Trucks running fine.  Share any deposit pics you might have with mileage.

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If you don’t see the oil in your plastic intake tube (between air filter box and throttle body) from the valve cover breather hoses, you are fine.


You can pop that off pretty quick to see if your truck has been eating oil coming from valve cover hoses. Causes detonation, poor fuel economy, carbon deposits on valves and heads. 

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