Anyone know anything about this coolant? I am about to do the 30K on my girlfriends 2010 Mazda 3. Mazda says it's supposed to last 120k. I think I'm going to drain and fill the radiator anyway. If I can find the stuff. I can't find it online. I'm going to call the dealer today and see if they even have it. If they do I'm sure it'll be like $25 a gallon. I just wonder if the stuff is actually a superior product or if it's just regular old green antifreeze that they mix 50/50 and mark up 4x the price.