Just wanted to say that I bought your oil stop leak first week of august and has been leak free since…it’s funny…I put in my truck with oil change, and due to a prob I had, your product was only in truck for maybe less than 20 miles and had to drain oil…fig I was screwd because I wanted to leave in for a lot longer than 20 miles, but it’s working…can only imagine if I left it in till the next oil change! I’m a believer. Thanks for a great product…so far has saved me from doing a rear main seal on my truck…let’s see, $14.95, or $400-$500…no brainer for me! Thanks again