Anti-freeze (Ethylene Glycol with corrosion inhibitors mixed with water) is making the best of a bad situation. The bad situation is that water is one of the most corrosive substances in the world. When it boils, the vapor formed takes up a lot of space, pushing liquid coolant away from hot metal surfaces making the coolant useless. The vapor pressure will force scalding coolant out of any hole in the system. The anti-corrosion additives go bad with time, requiring you to service the system every 2 years. The water ruins bearings in the pump and eats seals throughout the system. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=8072508405&indexURL=4#ebayphotohosting Evans Coolant uses no water. Evans is not corrosive. Evans won't boil over even under extreme conditions. Evans requires no maintenance for the lifetime of the vehicle. Evans does not create high pressure and won't spray hot coolant out if the radiator cap is removed. Evans won't ruin pumps, seals or radiators like water based coolant. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=8072508405&indexURL=3#ebayphotohosting Dex-Cool and the other "long life coolants" are not what they claim. These coolants (OAT Organic Acid Technology) have been found to be very destructive to engines and cooling system components. If you look up "Dex-Cool" and "lawsuit" on Google you'll find many sad stories of people who've ruined their cars with OAT coolants. For some reason, it turns to a black goo that clogs up passages and causes the engine to overheat. I've used Evans Coolant for years now. It's been used to cool everything that is liquid cooled:cars, motorcycle, generators, forklifts, trains, NG and propane engines, drag racers, desert racers, everything. It has been around since the late 1980s and has a good track record of performance. Big name race teams use it, but don't talk about their "secret weapon". http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=8072508405&indexURL=11#ebayphotohosting The anti-freeze industry doesn't want you to know about Evans because they want you to continue buying their outdated product. Who can blame them for that? The auto industry doesn't want you to use Evans because they want to keep selling radiators, pumps, thermostats and the labor to install them. Who can blame them for that? You should make your own choice of coolant and get off the high maintenance merry-go-round. Who could blame you for that? http://stores.ebay.com/Cooling-Solutions