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Thread: Seafoam?

  1. #1
    CTSScott's Avatar
    CTSScott is offline Cadillac Owners Fanatic
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    Seafoam?

    Has anyone used seafoam to clean the intake valves? I have a 2008 3.6L DI 90K and will be installing a catch can and then want to clean the valves. My mechanic suggested seafoam. Any good success??


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  3. #2
    99flhr is offline Cadillac Owners Enthusiast
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    Re: Seafoam?

    Have used it in multiple small engines with excellent results

  4. #3
    CTSScott's Avatar
    CTSScott is offline Cadillac Owners Fanatic
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    Re: Seafoam?

    Thanks, looking for anyone used it specifically in the CTS engine.

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    tinman's Avatar
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    Re: Seafoam?

    The only drawback I can see is if a chunk of carbon went into the cylinder and messed with your rings or cylinder wall. Mechanical cleaning would probably be better.

  6. #5
    SC2150's Avatar
    SC2150 is offline Cadillac Owners Connoisseur
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    Re: Seafoam?

    Quote Originally Posted by tinman View Post
    The only drawback I can see is if a chunk of carbon went into the cylinder and messed with your rings or cylinder wall. Mechanical cleaning would probably be better.
    Correct. We see scouring from any solvent based upper induction cleaning. It is impossible for particles to not be forced between the cylinder wall and piston while performing one.

    Manual cleaning is only 3-5 hours and then the valves are actually cleaned as new. Huge difference if you have over 20k miles on your DI engine.


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