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Antifreeze/Coolants Used In The Tropics

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MPG:
Antifreeze with glycol can cuase damage when used in hot climates, what are
you using?

Soaring:
That's an interesting concept.  Where in the world did you get an idea like that?  ;D  A 30-70 mixture of coolant/water is ideal for the hottest of climates at 100-120 Fareinheit.  Moderate climates should use a 50/50 mixture, and very cold climates should use a 60/40 mix depending on how far the temp dips below 0 degrees Fareinheit.   
With the exception of the desert regions of Arizona where temperatures reach the 100-120 range quite often, most of Americans can use a 50/50 mix in the summer, and some Northerners need to switch to a 60/40 during the winter.   

MPG:
Thanks for yor comment. I base my question on my findings in the Caribbean, where as a
result of the climate and our proximity to the ocean (salt water) corrosion and damage to
many automotive components is very high. In fact many water pumps are damaged by
chemicals in the Antifreeze. Example gaskets are damaged and leaks cuased when metals
are eaten like butter.

Our climate is not dry like in a Az. or eslewhere. Here many owners use water or a mix of
something, but not 50/50, 70/30 or 60/40.

Thanks again!  Anyone else have a solution?
 

Soaring:

--- Quote from: MPG on September 10, 2008, 05:17:25 PM ---Thanks for yor comment. I base my question on my findings in the Caribbean, where as a
result of the climate and our proximity to the ocean (salt water) corrosion and damage to
many automotive components is very high. In fact many water pumps are damaged by
chemicals in the Antifreeze. Example gaskets are damaged and leaks cuased when metals
are eaten like butter.

Our climate is not dry like in a Az. or eslewhere. Here many owners use water or a mix of
something, but not 50/50, 70/30 or 60/40.

Thanks again!  Anyone else have a solution?
 

--- End quote ---
You have a pressurized and sealed cooling system.  There is no way that the salt water climate you describe will  affect the internal cooling system of your engine.  Sure, the salt water climate will damage the metal parts of your car that are uncovered with paint, but the internal parts of your engine will not be affected by the salt water climate alone. 

Thierry:
 Yes, I agree with Soaring. I was in the Caribbean a few times and was wondering about the need to use antifreeze with the weather they have and I asked about it to a friend. They use a 50/50 mixture. Water contains more oxygen than coolant and it will destroy your cooling system much faster and if you add to that the effect of calcium contained in water, it's certainly not the way to go :)

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