I did look into this some on Sunday. They are a little misleading about the cooling. It does not absorb heat as well as water but the engine temps on many cars would not change. On some cars the engine temp will be a little higher. If your cars cooling system is just barely large enough to keep the engine cool with water then it is likely going to run hotter with Evans. I still really like the idea of using it for several reasons but not sure the Jetfire is going to like it. I will have to decide a little later if I will use it.