</font><blockquote><font size="1" face="Verdana, Tahoma, Arial, Helv, Helvetica, Sans">quote:</font><hr /><font size="2" face="Verdana, Tahoma, Arial, Helv, Helvetica, Sans"> DO NOT put in Dexcool or other orange/red coolant. Those are high silicate coolants and will toast your water pump </font><hr /></blockquote><font size="2" face="Verdana, Tahoma, Arial, Helv, Helvetica, Sans">Just curious why this is the case. I had my radiator off the other day (T belt change) and filled it with DexCool b/c I thought that is what was in there before (looked red, not green, and I didn't know about "Toyota red"). Anyway, looks like I may be chaning the coolant again here very soon, but before I do, just want to understand why the Dex Cool is problematic.