so I've been running engine ice and it seems to be working great. I still get a little warm on the hard pack with scratchers but it never gets too hot. a quick dive into the powder and 'm back where I want to be. In talking with a relative over the weekend he has a 900 and had similar results until his dealer in California switched his coolant. he couldn't remember the name of the stuff but it is supposedly the bomb as far as coolants go. better heat absorption and release, and it contains no water at all so there it is not corrosive at all. my uncle says since they did that he runs right where he wants temp wise all the time even on the hard pack, and with the lack of corrosion anyone can see why that would be nice. has anyone heard of something like this??? if not what's the best coolant everyone has been running?