Mr.Rx8alex

i want to clean my combustion chamber i used b12 chem tool too clean my ssv shutter valve because seafoam wouldn't remove carbon and b12 chem tool dissolved it in seconds can this harm my apex seals and what if i add oil so it doesn't dry it up too much

Mr.Rx8alex

Well I used it anyways made my exhaust smell worse then seafoamel my 8 is running like new at 87k miles