Marble Mystery Oil & Sea Foam

daredevil said

For those that may not know. Do not follow this advice too overzealous. use any liquid down the intake sparingly. if you pour this down an intake on a non running motor and it collects in a cylinder if you do not pull the plugs when you turn it over it may blow out the head gasket or bend a rod as liquid does not compress like air. be careful. just a friendly heads up.

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Good call, I forgot to add that part. When I used it I pulled all the plugs and pulled the coil wire before I cranked the engine over.

If you do this on a car thats not already filthy under the hood it'd be a good idea to cover the heads and plug holes with an old towel, the stuff gets shot out of the holes more than you would think. Kinda reminded me of flames shooting out of the headers on a dragster if that gives you any idea.