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Old 06-20-2007, 10:49 AM
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coolant = antifreeze

it does not help the efficiency of cooling system. WATER by itself cools better than water plus antifreeze. there are ingredients in coolant to prevent rusting though.

if you have a leak just replace with distilled water for now. don't worry about coolant until you have it fixed.

I don't run antifreeze/coolant in my vehicles since the weather here never go below freeze. just distilled water and water wetter.
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Old 03-09-2008, 11:30 AM
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Quote:
Originally Posted by fast4d
coolant = antifreeze

it does not help the efficiency of cooling system. WATER by itself cools better than water plus antifreeze. there are ingredients in coolant to prevent rusting though.

if you have a leak just replace with distilled water for now. don't worry about coolant until you have it fixed.

I don't run antifreeze/coolant in my vehicles since the weather here never go below freeze. just distilled water and water wetter.
I know people with e36 M3 track cars that run only water and Redline Water Wetter in their coolant systems. Coolant just prevents corrosion and water from freezing in cold temps. I would get the problem fixed as soon as you can though. My check coolant warning was lighting up every few weeks, so I took it to the dealer. They found that the water pump and valley pan gasket were defective. It was changed under warranty and I havn't had any issues since. It wasn't cheap. Gotta love the warranty!
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Old 03-09-2008, 01:11 PM
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I'm not an expert, but I'd be careful. Water's boiling point is much lower than water mixed with antifreeze. You won't cool very well if your water turns to vapor, and your cooling system components such as hoses may not withstand the expansion either.
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Old 03-11-2008, 01:49 PM
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Originally Posted by Secure
I'm not an expert, but I'd be careful. Water's boiling point is much lower than water mixed with antifreeze. You won't cool very well if your water turns to vapor, and your cooling system components such as hoses may not withstand the expansion either.

at what pressue? I assume the cooling system is runing at 15psi. that'll raise the boiling point of water to 250F+

yes glycol in coolant to raise it more but you won't ever reach 250F unless something is broken.

just top off with distilled water and find the leak. then add the proper mix of water/coolant.
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