> Of course an engine will run a little hotter when towing. Since you are
> putting more load, you will get more heat.
> It's been years since I've owned a vehicle that I've noticed running hotter
> under heavy load. Back in the day, I had a Toyota that would overheat if
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>> Of course an engine will run a little hotter when towing. Since you are
>> putting more load, you will get more heat.
Nobody said anything about overheating. Trucks tend to be overcooled
since they are setup for the max load expected, most cars however are
not setup for towing since that is such a small percentage who tow with
them, so the cooling system tends to not keep it as cool. Towing tends
to put a LOT more stress on a car than heavy load due to the drag of the
trailer, even more so than the AC and heavy headwinds. For that matter,
my experience has been that headwinds tend to make the cooling system
work better rather than worse. If you want to see the worst conditions,
try towing a large heavy trailer with a tailwind uphill.

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Cy Welch
89 Camaro RS 5.0 TBI
03 Malibu
Micheal Artindale - 29 Jun 2007 09:21 GMT
>> It's been years since I've owned a vehicle that I've noticed running
>> hotter under heavy load. Back in the day, I had a Toyota that would
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> better rather than worse. If you want to see the worst conditions, try
> towing a large heavy trailer with a tailwind uphill.
I have one worse than that...
Go up a mountain, hauling a trailer, realy hot day out, no wind....
There is a reason they sell transmission oil coolers for cars.
There is a reason older cars break down....
Cars are more of a people mover.
Trucks are for cargo.
At least thats what the designers think.
Micheal
Andrew Rabbitt - 03 Jul 2007 17:25 GMT
All very good points.
I'm in New England, USA. I'll be towing from Boston, MA to Pittsburgh, PA.
By noticeably hotter, the temperature gage moved up about 3 millimeters
when going up steep hills - I should have qualified that statement.
I leave tomorrow for the big trip - full report to come when I return!
Thanks for all the words of advice and comments.
>>> It's been years since I've owned a vehicle that I've noticed running
>>> hotter under heavy load. Back in the day, I had a Toyota that would
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>
> Micheal