>This is why, in the upper ranges of air temperature and work load (when the
>thermostat is constantly open), the wetting agent will lower the maximum
>temperature that the engine reaches.
>
> > I have NOT seen any change in operating temperature
> > of my engines under normal operating conditions,
>
>Then I doubt you have used the wetting agent in a fully loaded Westy going
>up a steep hill in 110 degree weather...

Measuring the water temperature is one thing, ....measuring the oil is
another thing - wouldn't the oil temp give you a better idea of the engine
temperature??? Maybe the water stay relatively the same when the oil can
spike up more rapidly - and the water is more diffused whereas the oil is
not as diffused - I mean there isn't any oil circulating up to your
radiator...

For those who missed this (otherwise you might want to skip the remainder):

>
>The coolant flows more easily,
> > allowing more heat to be transferred between the surface and the
>coolant.
> > In the engine this is good because the coolant can take away more heat,
>in
> > the radiator and heater cores this is also good because the heat in the
> > coolant is transferred more efficiently to be dissipated by the air
> > passing over the core.

>
> > Adding a wetting agent to your coolant will NOT change the operating
> > temperature of your engine, that is controlled by the thermostat(s).
>
>This is true only while operating in the temperature/work load range in
>which the thermostat will cycle between open and closed.... Beyond this
>range, when the theremostat is always open, the thermostat does not control
>the temperature of the engine; at this point the temperature will be
>controlled by the cooling capacity of the cooling system.
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