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Kees -
Living in hot and tropical climates like I have, I can confirm that using
cooler thermostats helps a great deal to reduce heat spikes in traffic, as
there is significantly less heat energy stored in the coolant at 165F vs
180F. That combined with a well sorted system will be sufficient to give
you a few more minutes at idle than if you were running a 180 or 190F
thermostat on a very hot day.
You are correct it technically will not prevent overheating, but it will
postpone it long enough until you get driving again.
Best,
Alan
On Wed, Jul 21, 2021 at 5:48 PM Kees Oudesluijs <coudesluijs@upcmail.nl>
wrote:
> A thermostat with a lower opening temperature does not prevent
> overheating. It may buy you some time before the engine overheats but if
> you are long enough in a traffic jam it will overheat eventually. A more
> powerful fixed fan may alleviate the problem a bit but the only real
> solution will be a properly installed electric fan.
>
> I have done this from the sixties on all my cars that had a fixed fan.
> However even in those days many of the more powerful cars were already
> equipped with thermostatically controlled radiator fans.
>
> An electric fan does not solve overheating because of other issues like a
> dirty or blocked radiator, silted up engine, faulty cowling etc.
>
>
> Kees Oudesluijs
>
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<div dir=3D"ltr">Kees -<div><br></div><div>Living in hot and tropical clima=
tes like I have, I can confirm that using cooler thermostats helps a great =
deal=C2=A0to reduce heat spikes in traffic, as there is significantly less =
heat energy stored in the coolant at 165F vs 180F.=C2=A0 That combined with=
a well sorted system will be sufficient to give you a few more minutes at =
idle than if you were running a 180 or 190F thermostat on a very hot day.</=
div><div><br></div><div>You are correct it technically will not prevent ove=
rheating, but it will postpone it long enough until you get driving again.<=
/div><div><br></div><div>Best,</div><div><br></div><div>Alan</div></div><br=
><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, J=
ul 21, 2021 at 5:48 PM Kees Oudesluijs <<a href=3D"mailto:coudesluijs@up=
cmail.nl">coudesluijs@upcmail.nl</a>> wrote:<br></div><blockquote class=
=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rg=
b(204,204,204);padding-left:1ex"><u></u>
=20
<div><p>A thermostat with a lower opening temperature does not prevent over=
heating. It may buy you some time before the engine overheats but if you ar=
e long enough in a traffic jam it will overheat eventually. A more powerful=
fixed fan may alleviate the problem a bit but the only real solution will =
be a properly installed electric fan.<br></p><p>I have done this from the s=
ixties on all my cars that had a fixed fan. However even in those days many=
of the more powerful cars were already equipped with thermostatically cont=
rolled radiator fans.<br></p><p>An electric fan does not solve overheating =
because of other issues like a dirty or blocked radiator, silted up engine,=
faulty cowling etc.<br></p><p><br></p><p>Kees Oudesluijs<br></p></div>
</blockquote></div>
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