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Distilled water bad? Use reverse osmosis water instead? #5111860
05/21/19 10:38 PM
05/21/19 10:38 PM
Joined: Apr 2010
Posts: 1,428
Suburban Washington DC
atikovi Offline OP
atikovi  Offline OP

Joined: Apr 2010
Posts: 1,428
Suburban Washington DC
Guy says distilled water is bad because it pulls minerals, aluminum and iron oxides from the block. Says to use reverse osmosis water or filtered rain water. Go to time 5:55: https://www.youtube.com/watch?v=2ovO1esqzVo Thoughts?

Re: Distilled water bad? Use reverse osmosis water instead? [Re: atikovi] #5111862
05/21/19 10:47 PM
05/21/19 10:47 PM
Joined: Sep 2005
Posts: 6,400
MIchigan
Warstud Offline
Warstud  Offline

Joined: Sep 2005
Posts: 6,400
MIchigan
Antifreeze manufactures use both in there 50/50 mix.

Re: Distilled water bad? Use reverse osmosis water instead? [Re: atikovi] #5111871
05/21/19 10:59 PM
05/21/19 10:59 PM
Joined: Jun 2003
Posts: 19,013
Apple Valley, California
Chris142 Offline
Chris142  Offline

Joined: Jun 2003
Posts: 19,013
Apple Valley, California
Once antifreeze is added it becomes a coolant loaded with anti corrosion additives.


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Re: Distilled water bad? Use reverse osmosis water instead? [Re: atikovi] #5111878
05/21/19 11:12 PM
05/21/19 11:12 PM
Joined: Nov 2004
Posts: 1,967
SD
zrxkawboy Offline
zrxkawboy  Offline

Joined: Nov 2004
Posts: 1,967
SD
Either distilled or RO is fine.


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

Re: Distilled water bad? Use reverse osmosis water instead? [Re: atikovi] #5111879
05/21/19 11:14 PM
05/21/19 11:14 PM
Joined: Jan 2018
Posts: 1,196
San Antonio, TX
das_peikko Offline
das_peikko  Offline

Joined: Jan 2018
Posts: 1,196
San Antonio, TX
Distilled water pulls minerals out of the engine block? Boy that does it right there. I've heard everything now. LOL

Re: Distilled water bad? Use reverse osmosis water instead? [Re: atikovi] #5111944
05/22/19 03:47 AM
05/22/19 03:47 AM
Joined: May 2019
Posts: 182
California
OnTheRocks Offline
OnTheRocks  Offline

Joined: May 2019
Posts: 182
California
I would be more concerned with tap water from a hose. But tens of thousands of people use regular water. Shops use regular water.

Re: Distilled water bad? Use reverse osmosis water instead? [Re: das_peikko] #5111950
05/22/19 04:36 AM
05/22/19 04:36 AM
Joined: Oct 2015
Posts: 3,062
Balearic Islands , Spain
FordCapriDriver Offline
FordCapriDriver  Offline

Joined: Oct 2015
Posts: 3,062
Balearic Islands , Spain
Originally Posted by das_peikko
Distilled water pulls minerals out of the engine block? Boy that does it right there. I've heard everything now. LOL

It does sound like complete BS


1975 Ford Capri II Ghia 3000 V6, - Shell Helix HX3 20W-50 w/ 20% Rimula R4X 15W-40 HDEO.
1988 Ford Escort XR3i Cabrio, - Shell Rimula R4X 15W-40
G40 Si-OAT coolant in both


Re: Distilled water bad? Use reverse osmosis water instead? [Re: atikovi] #5111956
05/22/19 05:17 AM
05/22/19 05:17 AM
Joined: Dec 2002
Posts: 43,111
'Stralia
Shannow Online content
Shannow  Online Content

Joined: Dec 2002
Posts: 43,111
'Stralia
To quote a now permabanned member...that's utter bollocks.

Yes, all of those waters are "mineral hungry", they will chew the concrete lining off concrete lined pipes to elevate their hardness...but inside metal receptables, no, they won't eat them.

Power stations we use deionised water inside the boilers and feed system, purified with ion exchange, polished with ion exchange, and ultimately as the water is recirculated through the boiler and turbine many many times...distilled.

Corrosion rates are low, unless air gets into the system...oxides need oxygen.

If we used tap water or rainwater, we'd have scaling as well as corrosion, and intergranular corrosion.

People used tap water forever, demineralised/deionised/distilled is best practice for coolant longevity.


If it's the truth....it can handle the pressure !!!
Re: Distilled water bad? Use reverse osmosis water instead? [Re: atikovi] #5111960
05/22/19 05:33 AM
05/22/19 05:33 AM
Joined: Apr 2015
Posts: 486
Upper midwest
Mainia Offline
Mainia  Offline

Joined: Apr 2015
Posts: 486
Upper midwest
RO water is corrosive NO!!!!!! It needs plastic or stainless steel in it's equipment. BIG MISTAKE to use RO water. I run a $80,000 RO system at work. You can use it in batteries, but don't use it in a aluminum or steel block, that's just nuts. In fact we had a problem with RO water attacking our chemistry in printing, we have to "pre treat" the virgin RO water to "attack" an additive BEFORE we use it, since it is so aggressive. Distilled is 110% the best water to use in an engine block.

Re: Distilled water bad? Use reverse osmosis water instead? [Re: das_peikko] #5111964
05/22/19 05:39 AM
05/22/19 05:39 AM
Joined: Jul 2012
Posts: 2,958
South Carolina
alarmguy Offline
alarmguy  Offline

Joined: Jul 2012
Posts: 2,958
South Carolina
Originally Posted by das_peikko
Distilled water pulls minerals out of the engine block? Boy that does it right there. I've heard everything now. LOL


^^YUP^^

Amazing how anyone can produce a youtube video and people watch it like its true.
Its complete BS, in fact wont even watch it, why add "views" to the person making it, which is why its there to begin with.

Last edited by alarmguy; 05/22/19 05:39 AM.

14 Road King (current)
08 VStar 1300 Tourer
07 Suzuki C50
Re: Distilled water bad? Use reverse osmosis water instead? [Re: Mainia] #5111965
05/22/19 05:40 AM
05/22/19 05:40 AM
Joined: Jul 2012
Posts: 2,958
South Carolina
alarmguy Offline
alarmguy  Offline

Joined: Jul 2012
Posts: 2,958
South Carolina
Originally Posted by Mainia
... Distilled is 110% the best water to use in an engine block.


^^^YES^^^


14 Road King (current)
08 VStar 1300 Tourer
07 Suzuki C50
Re: Distilled water bad? Use reverse osmosis water instead? [Re: atikovi] #5111975
05/22/19 05:55 AM
05/22/19 05:55 AM
Joined: Jun 2002
Posts: 13,066
The Motor City
Kestas Offline
Global Moderator
Kestas  Offline
Global Moderator

Joined: Jun 2002
Posts: 13,066
The Motor City
Originally Posted by atikovi
Guy says distilled water is bad because it pulls minerals, aluminum and iron oxides from the block. Says to use reverse osmosis water or filtered rain water.

Complete nonsense. The issue is with deionized water. And even deionized water is safe once the first bits of antifreeze are added to it.

Re: Distilled water bad? Use reverse osmosis water instead? [Re: alarmguy] #5111982
05/22/19 06:16 AM
05/22/19 06:16 AM
Joined: Jun 2002
Posts: 13,066
The Motor City
Kestas Offline
Global Moderator
Kestas  Offline
Global Moderator

Joined: Jun 2002
Posts: 13,066
The Motor City
Originally Posted by alarmguy
... why add "views" to the person making it, which is why its there to begin with.

To give it a thumbs down.

Re: Distilled water bad? Use reverse osmosis water instead? [Re: atikovi] #5112030
05/22/19 07:17 AM
05/22/19 07:17 AM
Joined: Jun 2006
Posts: 460
midland tx
askani79705 Offline
askani79705  Offline

Joined: Jun 2006
Posts: 460
midland tx
Both are fine


2017 Ford F150 NAPA syn 5w30 Fram 11955.
2000 Chevy 2500 Silverado NAPA conv 5w30 AC Delco Filter
2012 Impala Pennzoil Ultra 10w30 AC Delco Filter
Re: Distilled water bad? Use reverse osmosis water instead? [Re: atikovi] #5112035
05/22/19 07:23 AM
05/22/19 07:23 AM
Joined: Oct 2007
Posts: 636
TN
TTK Offline
TTK  Offline

Joined: Oct 2007
Posts: 636
TN
That is the 'hungry water" theory, originated by Click&Clack, as a joke I assume

Last edited by TTK; 05/22/19 07:24 AM.

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