Sunder I have no argument against the THEORY of ethylene glycol. Your phd's can quote book numbers all day long and it means NOTHING to the temps of the engine and the radiator.. I have run it pure for maybe 40 years in lots and lots of vehicles in the Texas heat. NEVER has the gauge showed an elevated temp. Never have I replaced a coolant pump that has been run on PURE 100%! Maybe the temps of the coolant between entering and exiting the radiator are NOT the temps being theorized on in the books. I guess I could install a sender in the exit hose of the radiator and see for myself... But what the hell, why go to the trouble? I have had no problems with the rides running 100% in 40 years so why spend the time?
Oh yeah, while I am at it. In the past 40 years no vehicle has left my shop that I have done head work or rebuilt or otherwise drained the coolant that I did not install 100% on.. ALL have went away running good and NONE ever returned with any coolant problems..
Take that to your phd's and let em look it up in their books. <img src="/forums/images/graemlins/smile.gif" alt="" />
Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />