Re: Coolant?

[bfuhrman@isd.net]

>Eric,
>Normal antifreezes are designed to give the best benefit (freeze protection

>and boil protection ) when mixed in a 50%/50% ratio. If  you look at the 
>chart on any full strength antifreeze bottle it will show a -34F freeze 
>protection and the best boil over protection at that mixture. So pouring one

>bottle of full strength antifreeze and one bottle of water will achieve the

>desired mix.

I will take some exception to that description of WHY a 50/50 mix is 
recommended.


The best "boil over protection" would be pure antifreeze.  
The best "freeze protection" is at a higher mix but it is a mixture of both
materials. 
The best "heat transfer" is with no antifreeze.
The best "cost" is with no antifreeze.
The best "corosion protection" is probably pure antifreeze.

The 50/50 mix is a general combination that provides a good trade off among
all the "bests" and works in most climates for most people.

If someone knows what they are doing, it is very likely that they may find a
"better" mix for their purpose.