Tap water in engine coolant tank?
09-18-2011, 01:58 PM
#27
Yes it does, sir.
Monchie is one of the last people I'd want to killfile, but there are a couple of others.
Ken
Ken
Your fine but as others said make sure it's not all water. The hydrometers you buy will even tell you on a temperature scale how low your fluid is good for before it will freeze.
but to ensure "trouble free" operation, 30% is what I would use, minimum
The glycol will change the boiling point (not by much) but more importantly it has superior heat transfer properties and lowers the freezing point. Most engine coolants run around 212 deg F anyway. I don't know if rotarys run hotter or not....
Distilled better than tap - yes. Any reason to worry about tap - no. Most important is you have a 50:50 or close mix and your level is good.
Stop freaking the OP out lol.
Stop freaking the OP out lol.
not trying to freak him out but, a properly maintained car will last longer (duh), it's funny that sometimes I visit my friend's garage, some cars pull in with overheating engines and busted radiator. I just asked him like when was the last time you flush your "engine water/coolant", the guy was like "huh? u need to change it? I thought it last forever?" and he has just 90K miles. His bill was like 5K, including complete engine rebuild.
I hate it when that computer lady Tell me "Not enough minerals" when I'm trying to rush. lol
Last edited by nycgps; 09-18-2011 at 02:02 PM.
09-18-2011, 02:15 PM
#29
Registered
Not by a long shot. You're well up among my favorites, along with Monchie.
Never mind my water pump. You ought to see my kidneys.
Ken
Ken
09-18-2011, 02:52 PM
#30
09-18-2011, 03:19 PM
#31
Just to confuse the issue further, deionized water is much more corrosive than tap water, and it can't be pumped through copper or steel pipes. However, once you mix it with coolant, it isn't DI anymore.
The issue with hard water is mineral deposits.
The issue with hard water is mineral deposits.
09-18-2011, 04:29 PM
#32
If the internals are stainless steel the concern is stress corrosion cracking. Since you can't remove heat or pressure it's basically going to fail at a weak or botched weld regardless of the water type.
09-18-2011, 06:48 PM
#34
All alloys are prone to corrosion. Don't tell me otherwise because I know I didn't pay $12,000 for 11 credits worth of engineering chemistry, material science, and material strength FOR NOTHING.
Last edited by SayNoToPistons; 09-18-2011 at 06:50 PM.
09-18-2011, 09:10 PM
#35
^^ yes and no. Corrosion as we typically see it is the oxidation of iron. Remove an element of the corrosion triangle and it doesn't happen.
For alloys such as stainless steel it doesn't see typical corrosion as I pointed out it's prone to stress corrosion cracking caused by free chlorides within the water. Chlorides alone won't do it. Again think of it like a fire triangle in which you have heat chlorides and weakspots or high pressures. Remove one and you won't see corrosion in stainless steels.
181 credits of Engineering suggests to me so. I am no expert in radiators though so I don't know what material we are dealing with in our cars but I would not stress over tap water.
For alloys such as stainless steel it doesn't see typical corrosion as I pointed out it's prone to stress corrosion cracking caused by free chlorides within the water. Chlorides alone won't do it. Again think of it like a fire triangle in which you have heat chlorides and weakspots or high pressures. Remove one and you won't see corrosion in stainless steels.
181 credits of Engineering suggests to me so. I am no expert in radiators though so I don't know what material we are dealing with in our cars but I would not stress over tap water.
09-19-2011, 12:22 AM
#37
I zoom therefore I am.
so to all you lab rats out there... if your car overheats while driving to work dont grab a box of deionized water to top it off
09-19-2011, 12:32 AM
#38
^^ yes and no. Corrosion as we typically see it is the oxidation of iron. Remove an element of the corrosion triangle and it doesn't happen.
For alloys such as stainless steel it doesn't see typical corrosion as I pointed out it's prone to stress corrosion cracking caused by free chlorides within the water. Chlorides alone won't do it. Again think of it like a fire triangle in which you have heat chlorides and weakspots or high pressures. Remove one and you won't see corrosion in stainless steels.
181 credits of Engineering suggests to me so. I am no expert in radiators though so I don't know what material we are dealing with in our cars but I would not stress over tap water.
For alloys such as stainless steel it doesn't see typical corrosion as I pointed out it's prone to stress corrosion cracking caused by free chlorides within the water. Chlorides alone won't do it. Again think of it like a fire triangle in which you have heat chlorides and weakspots or high pressures. Remove one and you won't see corrosion in stainless steels.
181 credits of Engineering suggests to me so. I am no expert in radiators though so I don't know what material we are dealing with in our cars but I would not stress over tap water.
I don't study Engineering so I dunno but what I do know is the less impurities the better. Tap water is called hard water and it's bad for engines for a reason.
09-19-2011, 01:02 AM
#39
Registered
Ken
LOL
05-20-2014, 06:58 AM
#44
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