I did a lot of research into Evans before I decided to try it, the boiling point is around 350 degrees F so it won't boil. The BTU transfer rate is slightly less than a water antifreeze mix which is the negative, I talked to an Evans rep and he said that it eliminates hot spots where water / antifreeze mix will tend to boil in areas around the combustion chamber when the engine gets hot, steam pockets don't transfer heat, since Evans doesn't boil, it gets the heat out of those areas much better so overall it does a better job. He also mentioned that hot spots cause knocking so getting the heat out of those areas would help reduce knocking in high compression engines. Sounded good to me. Evans is not compatible with regular antifreeze or water so you have to flush out and drain the block before putting in Evans, also, Evans is expensive but since its a lifetime coolant, never needs changing, it can ultimately be cheaper.