Thread: Temp Dillema

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Originally Posted by NTFDAY

Your coolant mix should never exceed 50/50. A higher concentrate of anti freeze will cause it to run cooler.

I believe it would tend to run hotter. Pure water has the highest specific heat capacity. For a given flow rate when you add E-Glycol this drops and the fluid temps rise. In addition the mixture does not pump as efficiently as pure water so there's another penalty. These cause heat, not cold. In either case it is not going to result in more than a +/- 5 degree difference in an automotive application.

Looks like you have a 160 thermostat and you probably need a 185 IMO. This is especially true if the engine is fuel injected ..................

Kitz

A proof that antifreeze is hotter is the fact we don't use the stuff in race cars mainly because once it gets hot,it stays hotter longer.