Maybe the Techron did something, or maybe just running 2 tanks through was all it took. I know in my case it would come and go. Went years ago and stayed gone. Reminds me of the chiropractor. Go in for a few visits where they work on "sublimations" and make your back crack and pop. Maybe it does something or maybe it just went away naturally like most pains do. Sorry, I'm just a skeptic.