Coolant/Water mixtures

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Monkeyman78

New Member
So, water by itself has the best cooling properties but coolant is needed to inhibit growth and corrosion within the system.

In the past I've always used 100% coolant for my LC setup; this weekend I'll need to drain my system and will probably replace it with 50/50 (water/coolant) or 75/25.

Have any of you noticed any adverse differences in temperature when using different water and coolant mixtures? Is there a general consensus for what works best?
 
distilled water works best, growth of anything shouldn't really be a problem. and corrosion only if aluminumn and copper are mixed. however i don't think it would take much coolant with anti corrosive properties to stop it. are you using racing automotive coolant?
then i don't thing running 100% coolant would be optimal. i think you could get away with between 80 to 95 percent water. you can mix ratio depending on the coolants manufactures specs.
 
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I don't know if this applies but in Auto, they tell you the BEST ratio of water to coolant is, i think 3:7 to 4:6...... Anything else and you won't get the full transfer of heat...... It's a big mis-conception that straight coolant will absorb more heat......
 
With automobiles it depends on what the car is used for.

I've read that race cars use almost all water because of it's heat transfer capabilities, and because the engine is constantly being worked on when the car isn't operating; therefore they can use just water, because it's likely that they flush the system out after each race.

My car's engine block has a high aluminum content. The recommendation is that you use a 50/50 mix to prevent scaling and corrosion within the radiator and engine.
 
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