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Old 10-02-2010, 12:27 PM   #131 (permalink)
3-Wheeler
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Quote:
Originally Posted by ShadeTreeMech View Post
I would be interested in knowing more info on the peculiarities of antifreeze.

I honestly wouldn't recommend maintaining temps of 250°F, but I would hope holding steady at 200°F would be fine.....is this a bad assumption?

And I think having the ability to control air flow is starting to sound way cool, especially considering the cooler temps heading our way this time of year.
Hi ShadeTree,

Yes, holding 200°F is fine. I suppose that most of us assume that since it's anti-freeze, AND it's rated to some value, let's say 265°F, cause it says so on the can, then we also assume it's perfectly safe to drive at this temperature all the time.

The same can be said of motor oil. If the can says it... it must be OK.

Well just like motor oil, anti-freeze likes it better at cooler temperatures. Although I should mention that most engine manufacturers would like to see oil temperatures just slightly above boiling to burn of water condensation that occurs in the oil when the engine cools back down.

At the extreme temperatures of 265°F or so, I have seen anti-freeze turn into it's own form of sludge. It comes out looking like someone poured sawdust into the mix and let it settle to the bottom. That's what happens when it gets too hot.

Jim.

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