...a friend of mine with a b16 civic has been running straight water in his cooling system, no anti whatsoever...says it runs about 15 degrees cooler. Was thinking about flushing my system and using straight water, maybe adding some purple ice coolant to the mix...safe or unsafe? I live in NC, btw...gonna be 80 degrees for about 5 more months, lol. Anyone try it or running it?
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I used to when I lived in AZ year round. Chances are you'll have a minimal ammount of anti-freeze left in there for anything that comes close, but I wouldn't go a winter anywhere else like that
um....I don't know how to respond, I always thought it was dangerous to run with out any anti-freeze. Becuase water boil's at 212F, so if your engne at any point gets over that, the water would boil, therefore, maybe after a while of driving, you would have no more water left to cool the oil, right?
antifreeze also lubes your waterpump. the water in your system will not boil at 212 because water under pressure takes more heat before it will boil. i still would never recomend running without any antifreeze aka coolant. its there for a reason.
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Adam Asmus wrote:um....I don't know how to respond, I always thought it was dangerous to run with out any anti-freeze. Becuase water boil's at 212F, so if your engne at any point gets over that, the water would boil, therefore, maybe after a while of driving, you would have no more water left to cool the oil, right?
water has alot higher boiling point than antifreeze.Antifreeze has a much lower FREEZING point.That's why we use it.If you are never in cold weather then it's kinda pointless.Just watch for corrosion in the radiator.Water tends to eat away at some things more than coolant.
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water also absorbs and dissapates heat better than a mix of ethyl - alcohol (spelling?) so there would a lower temperature since more heat is lost in the rad. but if it freezes... wow i don't want to think about that.
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eCOfIRE.cOm (The Amish One) wrote:Adam Asmus wrote:um....I don't know how to respond, I always thought it was dangerous to run with out any anti-freeze. Becuase water boil's at 212F, so if your engne at any point gets over that, the water would boil, therefore, maybe after a while of driving, you would have no more water left to cool the oil, right?
water has alot higher boiling point than antifreeze.Antifreeze has a much lower FREEZING point.That's why we use it.If you are never in cold weather then it's kinda pointless.Just watch for corrosion in the radiator.Water tends to eat away at some things more than coolant.
its not antifreeze or coolant...
it antifreeze/coolant.
they are one in the same.. the antifreeze/coolant will keep it from boiling just like the antifreeze/coolant will keep it from freezing... thats why you cant put too much in the radiator because you water temp sensor will not work right.
antifreeze/coolant is used to stop overheating(boiling) and freezing of the water in the engine.
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...thanks for the input. Think I might try a 80water, 20coolant blend, as opposed to 50-50. If it lowers the coolant temp a bit, great. I tend to get stuck in traffic sometime, and our cavi's run hot hot hot. Wanna get an extractor hood at some point, too, heheh..
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using just water is very bad for your water pump (i don't know why its called that). colant actually lubricates your water pump but running a mix like you said will be good as long as it meets the standard of how much colant is in the mix
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Nate dogg wrote:using just water is very bad for your water pump (i don't know why its called that). colant actually lubricates your water pump but running a mix like you said will be good as long as it meets the standard of how much colant is in the mix
That what I learned in school as well, so I have to agree.
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Strait water not a good idea for daily use.
You water pump need lubrication and thats one of the reasons what coolant is for.
What you can do is use 2 bottles of Water Wetter and use water (distilled not tap) for racing or summer use. There you get some type of lubrication.
If you live in climates under 32F or 0C, use coolant.
I am using Dexcool the full gallon, 2 Water Wetters, the rest is filled with distilled water (3/4s gallon).
I flush it every year becasue to prevent any particles that can harm the pump.
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Antifreeze does help lube up your pump.
Also, as stated, antifreeze has a lower freezing point, hence the name.
HOWEVER... Its always been my understanding (correct me if Im worng) that when the antifreeze is mixed 50/50 with water (liek its supposed to be) it decreases the freezing point even more, and also increases the boiling point. Not because of a chemical reaction of sorts, but jsut the combination of whats there.
I also heard DexCool can be bad and gum up your coolant system and that good 'ol green anti freeze is better. Any comments on this?
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Anti freeze is a mis-nomer.
Glycol based engine coolant has: a lower freeze temperature than pure water, a higher boiling point than pure water, much better corrosion prevention than pure water, and it does lubricate your water pump.
Some racing uses pure water, but only because its much easier to clean up pure water from a track than an oily antifreeze mix.
But if your cooling system is in decent shape, the whole "my car runs 20 degrees cooler" idea is a joke. Its simple, your engine runs at the temperature that the thermostat wants it to. If your engine is cooler than the thermostat temp, the thermostat closes until its up to the right temp. If its running hotter than that, your radiator is probably clogged. Except at idle because the fan comes on at about 20-25 degrees higher than the average thermostat temp.
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