Hope this is posted in the right section. I have a 98 150 faststrike and have had absolutely no problems for 2 years now. I want to keep my engine running good and have read several articles about seafoam. I have never done this and have no clue how to do it or whereto buy it. Could someone treat me like a dumb blond and tell me what to do to treat my engine. I run the standard evinrude/johnson oil you buy at wal mart.