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what water to mix with antifreeze #4529500
09/29/17 03:28 PM
09/29/17 03:28 PM
Joined: Jan 2011
Posts: 1,035
Columbus Nebraska
old1 Offline OP
old1  Offline OP
Joined: Jan 2011
Posts: 1,035
Columbus Nebraska
As the title says, If using plain old green antifreeze in my classics, would my reverse osmosis water be as, or nearly as, good as distilled water to mix with full strength antifreeze???. Years ago, I used nothing but plain tap water and never had any problems, but then I seemed to get a different car every 2 or 3 years also. Not because of problems, but just something different caught my eye.


2017 Nissan Frontier 4.0 5w30
1965 Mustang 200 c/4 10w30 QS defy
1964 Ford Ranchero 302 c/4 15/40 Delo
1929 ford model A No filters, and 15/40 oil
Re: what water to mix with antifreeze [Re: old1] #4529504
09/29/17 03:36 PM
09/29/17 03:36 PM
Joined: Mar 2013
Posts: 4,784
The Midwest
skyactiv Online content
skyactiv  Online Content
Joined: Mar 2013
Posts: 4,784
The Midwest
Buy a "Zerowater" pitcher at a Wal-Mart store.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual
Re: what water to mix with antifreeze [Re: old1] #4529507
09/29/17 03:38 PM
09/29/17 03:38 PM
Joined: Aug 2008
Posts: 3,169
USA
Reddy45 Online shocked
Reddy45  Online Shocked
Joined: Aug 2008
Posts: 3,169
USA
Distilled. Contains little to no TDS so it's pure H2O.

Re: what water to mix with antifreeze [Re: old1] #4529511
09/29/17 03:46 PM
09/29/17 03:46 PM
Joined: Feb 2014
Posts: 2,491
Canada
Lolvoguy Offline
Lolvoguy  Offline
Joined: Feb 2014
Posts: 2,491
Canada
I've heard De-mineralized is the stuff you want.

Been working great on my cars.


06 Lexus IS350- Wife
88 BMW 325is- Mistress
Re: what water to mix with antifreeze [Re: old1] #4529514
09/29/17 03:48 PM
09/29/17 03:48 PM
Joined: Nov 2016
Posts: 1,278
WI
HoosierJeeper Offline
HoosierJeeper  Offline
Joined: Nov 2016
Posts: 1,278
WI
I've just used plain distilled water. Cheap and easy to get.


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Re: what water to mix with antifreeze [Re: old1] #4529515
09/29/17 03:48 PM
09/29/17 03:48 PM
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
Distilled is the most pure, and is really cheap. You can get it at the drug store for $1 a gallon. It is meant for use in CPAP machines and humidifiers etc.


Mighty Mouse Tech
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Re: what water to mix with antifreeze [Re: old1] #4529519
09/29/17 03:51 PM
09/29/17 03:51 PM
Joined: Dec 2005
Posts: 9,901
Upper Midwest
kschachn Offline
kschachn  Offline
Joined: Dec 2005
Posts: 9,901
Upper Midwest
De-mineralized is a generic term for water with "hardness" ions removed, it can be accomplished in a variety of ways including distillation and reverse osmosis. Either one of those is fine for this use.

Even your tap water can be fine but it depends on the locality. When I lived in the City of Milwaukee the water there was extremely low in TDS and was fine for cooling systems. But here in the suburbs where it comes from a well it is completely different, it has a high hardness value and I'd never use it for cooling systems or batteries. I think the distilled water at Walmart is under $1 a gallon, that is about as cheap as it gets.


1994 BMW 530i, 228K
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Re: what water to mix with antifreeze [Re: old1] #4529520
09/29/17 03:51 PM
09/29/17 03:51 PM
Joined: Sep 2017
Posts: 13
USA
BlueOval83 Offline
BlueOval83  Offline
Joined: Sep 2017
Posts: 13
USA
Distilled water. You can get it from Kroger for less then a dollar per gallon


08 Ford Fusion 2.3L I4
Re: what water to mix with antifreeze [Re: old1] #4529524
09/29/17 03:57 PM
09/29/17 03:57 PM
Joined: Mar 2017
Posts: 570
West Ma.
rollinpete Offline
rollinpete  Offline
Joined: Mar 2017
Posts: 570
West Ma.
Flush the system with some water, drain and refill...I guess i'm going to be wrong here but I take the garden hose and fill as needed after one gallon antifreeze... allways works for me... No need for distilled anything... hide use prestone full strength mixed with your water...

Last edited by rollinpete; 09/29/17 04:00 PM.

Pete.
97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive184k miles
Last Change;
Penn. Plat. HM. 5w30
Fram xg8a, Fram CA8141

I like my oil (slippery).

Re: what water to mix with antifreeze [Re: old1] #4529559
09/29/17 04:31 PM
09/29/17 04:31 PM
Joined: Jun 2002
Posts: 1,836
Texas
Bud Offline
Bud  Offline
Joined: Jun 2002
Posts: 1,836
Texas
I have always used distilled.


2016 Honda Pilot EX-L with NAV.....Mobil 1 0w20 AFE and Ultra XG7317
Re: what water to mix with antifreeze [Re: old1] #4529562
09/29/17 04:34 PM
09/29/17 04:34 PM
Joined: Jan 2004
Posts: 4,156
California
nthach Offline
nthach  Offline
Joined: Jan 2004
Posts: 4,156
California
Distilled/DI to be safe. If your local water isn't too hard that works as well.

Hard water was reason for the Europeans not liking phosphated coolants - phosphate ions do bind to calcium and magnesium ions and take it out of solution, causing precipitate.

Re: what water to mix with antifreeze [Re: old1] #4529574
09/29/17 04:52 PM
09/29/17 04:52 PM
Joined: Sep 2002
Posts: 2,275
VA
Gebo Offline
Gebo  Offline
Joined: Sep 2002
Posts: 2,275
VA
I have a reverse osmosis system for my saltwater fish tank. It is absolutely perfect for your coolant mixing. It removes all minerals.

Something I did was use an empty gallon milk jug and pour 1 qt of water in it. Take a marker and make a line at that water level. Pour another qt of water and mark that level, etc. I ended up with lines ar 1,2,3 and 4 qts. Then it was so easy to make my 50:50 mix of coolant and be consistent in adding it to my coolant system. Id wait and fill up my reservoirs last.


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'07 Lex GX470 58K
Amsoil in all engines, transmissions and differentials

Re: what water to mix with antifreeze [Re: old1] #4529600
09/29/17 05:18 PM
09/29/17 05:18 PM
Joined: Aug 2011
Posts: 9,560
Boston, MA
HerrStig Offline
HerrStig  Offline
Joined: Aug 2011
Posts: 9,560
Boston, MA
If you keep the bucket of your dehumidifier clean you can use the "distilled" water from it.

Re: what water to mix with antifreeze [Re: kschachn] #4529601
09/29/17 05:19 PM
09/29/17 05:19 PM
Joined: Nov 2004
Posts: 1,802
SD
zrxkawboy Online content
zrxkawboy  Online Content
Joined: Nov 2004
Posts: 1,802
SD
Originally Posted By: kschachn
De-mineralized is a generic term for water with "hardness" ions removed, it can be accomplished in a variety of ways including distillation and reverse osmosis. Either one of those is fine for this use.


/\ this


"Think of all the Ford owners who will someday want an automobile." John Dodge

Re: what water to mix with antifreeze [Re: old1] #4529647
09/29/17 06:02 PM
09/29/17 06:02 PM
Joined: Jan 2017
Posts: 1,139
USA
ArcticDriver Offline
ArcticDriver  Offline
Joined: Jan 2017
Posts: 1,139
USA
De-Ionized is what many coolant manufacturers instruct right on the jug.

Personally, I have found that melted glacial ice taken from core samples at a depth of about 70-73 meters work best.
Fijian water is a distant second.




Multiple Diesel and Gasoline vehicles
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