I had a friend give me a bottle of the Slick Msit , he knows how I take care of my truck and thought I would like it....he was right , so I decided to try other products , like the fuel treatment. I WILL NEVER use any other brand again . I saw LUCASOIL also had auto & metal polishes and could not find them anywherfe in my area . I called Sue at the Ocala office and she sent some samples of both . I am a Firefighter and know the importance of clean and funcyioning equiptment . I am now going to recommend to the Department mechanoc to switch to LUCASOIL products .