Bests & Worsts Reviews from Amazon

I was very sceptical, and a little worried about this causing further damage to my 2003 Honda civic. I actually ordered this just so I could get the car to the mechanic shop for a new head gasket, because it overheats very quickly. I finally just poured it in and let the car idle for about a an hour while keeping an eye on temp gauge. Temp never went over half way, heater blew hot air once again, and car idled better... So i took it out on an aggressive drive for 15-20 minutes, drove great, had heat, and engine temp stayed below half. My head gasket was diagnosed as bad because exhaust gas was getting into coolant and blowing it out my overflow. That has also stopped. I am truly amazed by this little bottle... it saved me over $1000.00! I was not paid or given this for free in exchange for a review, just really impressed and hopeful others have a similar result after using k-seal.