Hello, I knew I would never learn, but today I was a bit surprised. By a pure coincidence I came across a video that speaks of a cooling system without water: http://www.youtube.com/watch?v=t7PykrgzWPQ It is promised that the complete cooling system will work without water. Ed China explains how it is “rebuilt”: http://www.youtube.com/watch?v=s-NfA17q0MQ On the page you will also find a lot of information: http://www.evanscoolants.co.uk/classic -cool-180.html Interesting info should be that it is supposed to last 20 years, until -40 degrees and up to 180°C works, that the temperature of the engine increases by 3-10°C, the engine has a little more power (because no longer a pilot is from noet e.g.; sure to relax) and a few other things. The advertising checks, which promise less consumption and more power you can ignore, but I find it exciting that there are other solutions and ways there is an engine. air and water are familiar to me, but not yet. I’m not quite sure what to think about it. If Jay Leno already installs this in his expensive vintage cars, it can’t be bad (), but he also has more money and can allow himself to experiment, but supposedly he has been using it for a very long time. I don’t know whether this “filling” can replace the luefter, the Kuehler and all kinds of water slurry with blind plugs. u At least in my case it is not thought to end, because the automatic start of my E21 is dependent on warm water. However, it remains interesting; what do you think about it?