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  #1  
Old 09-15-2004, 01:42 PM
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Temp Guage Question?

Morning All, on the temp guage of my 83 300D, what can I assume are the temps of the lines between the ones with numbers?
----120
------?
-----80
-----?
----40

At 70-75mph, AC on, with NM outside tem 95+ my car runs between 80c and at times about a needle width above the next line up.

Thanks again..Andy

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Last edited by Old Charro; 09-15-2004 at 03:31 PM. Reason: misspelling
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Old 09-15-2004, 01:47 PM
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Those number are degrees in Celsius/centigrade. Water boils at 100 degrees Celsius. My 84 300d runs in the same temp range as yours. Most "gas" cars run a 190 F degree thermostat, and water boils at 212 degrees F if I remember my science class. So, as long as you are not boiling your antifreeze, you should be ok.
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Old 09-15-2004, 02:14 PM
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60 and 100

Dan
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Old 09-15-2004, 03:48 PM
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sounds like an SAT question. If it takes the car 60 minutes to go 100 miles, and a train is coming at the car at 45mph, what color is the motorcycle?

LOTS of temp guage info in the archives, searches are really fun.
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Old 09-15-2004, 10:25 PM
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Quote:
Originally Posted by Old Charro
Morning All, on the temp guage of my 83 300D, what can I assume are the temps of the lines between the ones with numbers?
----120
------?
-----80
-----?
----40
----120 = 248F
------? = 212F (100C)
-----80 = 176F
-----? = 140F (60C)
----40 = 104F
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Old 09-16-2004, 02:59 AM
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Quote:
Originally Posted by Old Charro
Morning All, on the temp guage of my 83 300D, what can I assume are the temps of the lines between the ones with numbers?
----120
------?
-----80
-----?
----40

At 70-75mph, AC on, with NM outside tem 95+ my car runs between 80c and at times about a needle width above the next line up.

Thanks again..Andy
That is exactly the range my turbo Gurkha runs and it only creeps up to 95c when the ambient outside temps are in the range of 45c+

You are well within the safe range.
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Old 09-16-2004, 07:53 AM
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Question: Has anyone tried the stuff (don't remember the product name) you pour into your cooling system that claims to reduce operating temperature by as much as 20% ????
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Old 09-16-2004, 10:44 AM
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You mean Water Wetter from Redline, yet it works, have tried it so myself, works even better when pure water is used instead of coolant mix.
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Old 09-16-2004, 11:15 AM
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Gurka,

Of course pure water works best for cooling, nothing else (except some exotic materials) has a specific heat ot 1.

The problem with water is that it freezes at 32*F (0*C) boils at 212*F (100*C) and is very corrosive.

P E H
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Old 09-16-2004, 11:22 AM
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P.E.,

I am aware of water's shortcomings but there are anti corrosive chemical powders that can be added and as a matter of fact before coolants in India became affordable, used to be a regular additive in vehicles sold here, of course, these dont raise the boiling point or lower the freezing point.
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Old 09-16-2004, 01:06 PM
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Thanks for the replies.

Just wanted to make sure that 80C-105C was within a safe range. And it looks like Iam......



Andy

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