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Thermodynamics 1
Thermodynamics 2
Thermodynamics 3
Thermodynamics 4
Thermodynamics 5
Thermodynamics 6

Cooling 1

Cooling 2 - Fan Wheel
Cooling 3 - Radiator
Cooling 4 - Maintenance
Cooling 5 - Coolant
Cooling 6 - Repair
Cooling 7 - Fan
Cooling 8 - Vacuum Filling
Cooling 9 - Antifreeze
Cooling 10 - Electronically controlled
Cooling 11 - Thermal Management
Cooling 12 - Summary
Cooling 13 - Heat Pump
How to get engine warm?
Air Cooling
Air-stream Cooling
Air/Liquid Cooling
Blower Cooling
Axial Blower 1
Axial Blower 2
Radial Blower
Liquid Cooling
Cooling Module
Closed Cooling S.
Coolant Pump 1
Coolant Pump 2
Coolant Pump 3
Frost Plug
Hydrostatic Blower
Belt Drive
V-belt Drive
Fuel Vaporization
Electronic Cooling 1
Thermosiphon Cooling
Visc. Cooling Fan 1
Visc. Cooling Fan 2
Oil Cooling
Heat Exchanger
Charge Ait Cooler 1
Charge Ait Cooler 2
Fuel Cooling

Cooling 1
Cooling 2
Cooling 3
Cooling 4
Cooling 5
Cooling 6
Cooling 7
Cooling 8
Cooling 9
Cooling 10
Cooling 11
Cooling 12
Cooling 13

Cooling 9 - Antifreeze

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When the reality has to be shown in a diagram, it's very seldon straightforward. One should be quite happy if any kind of functional connection can be recognised. At best, this would be a little over 50% in the first part of the curve.

It is also important that both axis be properly chosen. In this case therefore, the mixing proportion is shown in percent on the X-axis and the resulting antifreeze temperature on the Y-axis. Since the mixing proportion is given or independently changed and the respective antifreeze protection depends on this. It would be completely senseless to do it the other way around.

The actual message in the diagram, is that one can do too much of a good thing. The antifreeze temperature sinks, in an almost linear fashion, up to just under 60 %, and rises again, when antifreeze is added, up to -15C. Indeed, those who travel with pure antifreeze in the cooling system, have a protection which is insufficient, even for central European conditions.

Water, by the way, has an especially good ability to transfer heat, this is however, very much reduced when using large amounts of antifreeze, this can cause, not only the freezing of the cooling system on cold nights but when straining the engine while driving, it can also result in overheating. Here it's a case of spending more to get two disadvantages at the time.

Don't say, this can't happen to you. Okay, probably not, if you're always on the road with relatively cars. Indeed, what about those cars that continuously lose a little coolant? If you always top up with only water, the antifreeze protection suffers, and if you take special care by topping up only with antifreeze, the cooling system is going to suffer, sooner or later, as well. 06/11

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