Ok I know these products aren't the best way to solve an issue. I bought my little 96 2.3 ranger and it leaks coolant into #1 cylinder. Seems to do it when cold and stops when it's warm. No oil coolant mixing etc. The truck isn't worth tearing it down and I'm pretty sure this leak has compromised the cylinder wall some. Rust/pitting etc. So it's the perfect candidate for a fix like this. What product do you guys recommend? First hand experience is nice to hear. Will those stop leak tablets work for this? Let me know what you would use. Thanks everyone.