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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83 300D 169K (Mine)
86 F250 4X4 6.9 (Mine)
05 VW Passat TDI (Wife's)

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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1984 300D Turbo Sedan (Hilda) 272,115 miles.....
Anthracite Gray/Palamino Leather, I am 3rd owner

2001 Dodge Stratus (Silver) (wifes) 55814 miles...

1982 280TE Wagon Astral Silver Metallic/
Anthracite Velour
260,512 miles (Eva)

1969 230 Sedan Olive Green/Black MBTex
4 Speed Manual
84,213 miles ????
Haus Frau


2004 Boreem Ninja Pocket Bike
Highly Modified 49cc (Ling Ling)

Einigkeit und Recht und Freiheit

60 and 100

Dan

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Dan Taylor/ Tulsa, OK MBCA
'84 300D/'90 Jaguar XJ6/XJ40

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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1983 300D- silver blue, tan leather, 205,000.
1975 Datsun 280Z. Stock, ready to restore.
1983 San Juan 23. Dry docked.

----120 = 248°F
------? = 212°F (100°C)
-----80 = 176°F
-----? = 140°F (60°C)
----40 = 104°F

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.

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% ????

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.

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

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.

Thanks for the replies.

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



Andy

__________________
83 300D 169K (Mine)
86 F250 4X4 6.9 (Mine)
05 VW Passat TDI (Wife's)