[TR] Best Anti-Rust Coolant
John & Pat Donnelly
pdonnel1 at san.rr.com
Sat Sep 22 19:47:35 MDT 2012
Just so I understand this correctly, having coolent in the water allows the
water in the cooling system to run more efficiently. So if I have proper
50/50 mix then when the gauge shows an increased temp the car is really
being stressed.
I run straight water with no problems.
Johnnie
'67 tr4a
> -----Original Message-----
> From: triumphs-bounces at autox.team.net [mailto:triumphs-
>
> "The 0 psi boiling point is 3750 F (1900 C)."... Sorry for the
> confusion in
> the [ALT + 0176] degrees symbol not mapping over to the simple text of
> team.net. It should read 375-degrees F and 190-degrees C, of course.
>
> The heat capacity of water is about 4.2 J/cubic cm-K-degree. Propylene
> glycol is about 2.5, ethylene glycol about 2.4. Densities are less
> than 5%
> different, so on a volumetric basis water can carry over 60% greater
> heat.
> This is why we normally don't run 100% antifreeze in our systems, and
> probably one of the reasons our old TRs were originally instructed to
> run
> with "clean rain water" unless it was frosty. More antifreeze isn't
> better.
>
> So what's really different from the waterless coolants and running 100%
> regular antifreeze? Propylene vs ethylene glycol? That doesn't seem
> like
> much...
>
> Don
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