I won a gallon of Motorkote on a trucker's radio show. It is very popular among truckers. I see it at different truckstops and Meijer's discount stores. Should I put this stuff in my car or should I just give it away at the truckstop? I don't really care if it has any positive effects. I'm just wondering about the negative effects. I've tried searching this forum and haven't really found a definitive answer anywhere on the web. If it is acceptable to put in my car is there a way to do a before and after type test?