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run straight coolant - NO water #3589141
01/05/15 02:37 PM
01/05/15 02:37 PM
Joined: Aug 2013
Posts: 173
Oklahoma
slomo Offline OP
slomo  Offline OP
Joined: Aug 2013
Posts: 173
Oklahoma
Can we do this safely? Pros and cons for why and why not please.

Seems like if we stop using water there will be no corrosion issues. Only thing left is heat transfer.

How about that Evan's Waterless Coolant?

slomo

Re: run straight coolant - NO water [Re: slomo] #3589144
01/05/15 02:41 PM
01/05/15 02:41 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Don't do it. Straight coolant doesn't transfer heat has well as 50/50 coolant and distilled water.

Re: run straight coolant - NO water [Re: slomo] #3589156
01/05/15 02:55 PM
01/05/15 02:55 PM
Joined: Jun 2003
Posts: 33,083
ME
eljefino Online content
eljefino  Online Content
Joined: Jun 2003
Posts: 33,083
ME
Evans has its place, so they claim.

You could run 70% coolant if you think there's something to it, and if your system can shed the heat despite its worse transfer abilities.

If corrosion is bad, are your grounds good or are you somehow getting electrolysis?

Re: run straight coolant - NO water [Re: slomo] #3589157
01/05/15 02:56 PM
01/05/15 02:56 PM
Joined: Oct 2005
Posts: 2,310
Baltimore, MD
racer12306 Offline
racer12306  Offline
Joined: Oct 2005
Posts: 2,310
Baltimore, MD
Water is a better coolant than coolant but coolant provide the ice and corrosion protection.


16 Ford Focus/2.0/6A
04 Dodge Neon SXT/2.0/MTX
12 Chrysler T&C/3.6/6A
Re: run straight coolant - NO water [Re: racer12306] #3589174
01/05/15 03:11 PM
01/05/15 03:11 PM
Joined: Jun 2004
Posts: 14,505
Top of Virginia
Hokiefyd Offline
Hokiefyd  Offline
Joined: Jun 2004
Posts: 14,505
Top of Virginia
Originally Posted By: racer12306
Water is a better coolant than coolant but coolant provide the ice and corrosion protection.


Yeah, in theory you could run straight water...especially if you live down south where freezing temperatures aren't as much of a concern. I think some used to do that very thing, with a corrosion preventative additive mixed in.

Re: run straight coolant - NO water [Re: slomo] #3589176
01/05/15 03:14 PM
01/05/15 03:14 PM
Joined: Dec 2006
Posts: 18,628
Dallas,Tx USA
aquariuscsm Offline
aquariuscsm  Offline
Joined: Dec 2006
Posts: 18,628
Dallas,Tx USA
Doesn't coolant also lubricate the water pump?


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Ultimate Durability 5W20

Re: run straight coolant - NO water [Re: slomo] #3589181
01/05/15 03:19 PM
01/05/15 03:19 PM
Joined: Aug 2012
Posts: 1,307
TN
MinamiKotaro Offline
MinamiKotaro  Offline
Joined: Aug 2012
Posts: 1,307
TN
Water is the coolant. The antifreeze is best thought of as just an additive to lower the freezing point plus provide some lubrication for the water pump.


1967 VW Beetle: Delo 15w40/ST4386
2004 Saturn Ion: Magnatec 5w30/DW5436
2014 Polaris Ranger 570: Delo 5-40/Wix 51356
Re: run straight coolant - NO water [Re: MinamiKotaro] #3589187
01/05/15 03:25 PM
01/05/15 03:25 PM
Joined: Apr 2012
Posts: 3,159
Boston, MA
Bgallagher Offline
Bgallagher  Offline
Joined: Apr 2012
Posts: 3,159
Boston, MA
Originally Posted By: MinamiKotaro
Water is the coolant. The antifreeze is best thought of as just an additive to lower the freezing point plus provide some lubrication for the water pump.


+1


2017 Chevy Traverse - 28k - Delco Dexos 1 and PF63
2014 Chevy Equinox - 22k - Delco Dexos 1 and PF457G
2015 GMC Terrain - 22k- Delco Dexos 1 and PF457G
Re: run straight coolant - NO water [Re: Bgallagher] #3589190
01/05/15 03:31 PM
01/05/15 03:31 PM
Joined: Oct 2008
Posts: 12,471
The Old North State
Sayjac Offline
Sayjac  Offline
Joined: Oct 2008
Posts: 12,471
The Old North State
...And AF/Coolant also raises the boiling point.

As for why not to do it, link seems to pretty well cover the reasons. From 1989 but reasons still seem applicable. Guess they are the reasons why I always read/heard not to.

Pure AntiFreeze Can Wreak Havoc In Car


Re: run straight coolant - NO water [Re: slomo] #3589201
01/05/15 03:41 PM
01/05/15 03:41 PM
Joined: Aug 2013
Posts: 173
Oklahoma
slomo Offline OP
slomo  Offline OP
Joined: Aug 2013
Posts: 173
Oklahoma
Who's actually ran on straight coolant?

slomo

Re: run straight coolant - NO water [Re: slomo] #3589202
01/05/15 03:43 PM
01/05/15 03:43 PM
Joined: Feb 2006
Posts: 2,643
Cincinnati
Chris Meutsch Offline
Chris Meutsch  Offline
Joined: Feb 2006
Posts: 2,643
Cincinnati
Originally Posted By: slomo
Who's actually ran on straight coolant?

slomo


I have. No cooling-related failures or issues in my ownership of a 1989 Mazda MX-6.


2005 Honda CR-V EX, 263k
Re: run straight coolant - NO water [Re: MinamiKotaro] #3589227
01/05/15 04:07 PM
01/05/15 04:07 PM
Joined: Oct 2010
Posts: 5,285
Florida
Artem Online content
Artem  Online Content
Joined: Oct 2010
Posts: 5,285
Florida
Originally Posted By: MinamiKotaro
Water is the coolant. The antifreeze is best thought of as just an additive to lower the freezing point plus provide some lubrication for the water pump.



I think today's coolant is more then just an additive to prevent freezing.

Prestone's mixing advice shows:

50/50 coolant / water = 265F boiling point.
70/30 coolant / water = 276F boiling point.

So if water cooled better then antifreeze, wouldn't more coolant concentrate not do anything for the boiling point?

What really confuses me is Red Line Oil's Water Wetter Super Coolant additive, which states:

50/50 coolant / water = 228F
50/50 coolant / water + water wetter = 220F
water only = 220F
water + water wetter = 202F

So according to these guys, water only is better then 50/50 coolant / water mix.

I don't know who to believe so I run 50/50 mix + Water Wetter for the heck of it.


2014 Mazda 3 Hatch 2.0L & 6spd - Idemitsu 0w20 Synthetic @ $0.75 a quart. (thanks Advance Auto Parts for the awesome deal)
Re: run straight coolant - NO water [Re: slomo] #3589230
01/05/15 04:11 PM
01/05/15 04:11 PM
Joined: Oct 2008
Posts: 1,019
New Zealand
Kiwi_ME Offline
Kiwi_ME  Offline
Joined: Oct 2008
Posts: 1,019
New Zealand
I have too, 1952 Austin A40. No issues, but would never do that on anything newer, plus I think it's not optimal for the water pump seal.

Re: run straight coolant - NO water [Re: slomo] #3589232
01/05/15 04:13 PM
01/05/15 04:13 PM
Joined: Jan 2003
Posts: 3,077
Coastal South Carolina
edwardh1 Online happy
edwardh1  Online Happy
Joined: Jan 2003
Posts: 3,077
Coastal South Carolina
and raise the boiling point


These products are all new every year?? They are a revolution!!! Razor blades, mens shirts, TVs, wiper blades, gutter guards, hearing aids... according to the ads. But also all new last year
Re: run straight coolant - NO water [Re: slomo] #3589236
01/05/15 04:16 PM
01/05/15 04:16 PM
Joined: Aug 2011
Posts: 9,560
Boston, MA
HerrStig Offline
HerrStig  Offline
Joined: Aug 2011
Posts: 9,560
Boston, MA
The FIRST reactor installed in the SSN Seawolf used liquid sodium as the heat transfer medium. It didn't work out and was replaced.

Last edited by HerrStig; 01/05/15 04:17 PM.
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