I was very interested in Motorkote, you will find videos like Project Farm showing a treated lawnmower engine ran for an hour without a failure when oil was drained and water filled crankcase.
But this chlorine can mix with water and from hydrochloric acid, so it soured me. I was all set to put some in a car I have. I could have gotten maybe 1-2 additional mpg. I had even been thinking of using it in my common rail diesel Ram.
Sure your going to find it works, but how long before it may dissolve a metallic surface by corrosion. I dont think its worth the risk. According to some videos, it causes an engine to run extremely smoothly and well, so I wonder if some have used it to help sell their car.