Royal Purple Ice Coolant Additive
Super Member
Joined: Mar 2009
Posts: 937
Likes: 15
From: Alpharetta Georgia
2006 E55, 2006 saab 93 aero, 2010 glk 4m
Guys, are all of you that are running water wetter running your car with split cooling and are you adding this to engine as well as s/c circuit?
MBWorld Fanatic!
Joined: Jan 2005
Posts: 4,276
Likes: 28
From: Bay Area
2015 E63S, 2018 E63S
Once I split it I will, you have to make sure that you follow the directions when using with the rear reservoir. (I'm talking about Royal Purple)
MBWorld Fanatic!
Joined: Jan 2005
Posts: 4,276
Likes: 28
From: Bay Area
2015 E63S, 2018 E63S
Super Member
Joined: Mar 2009
Posts: 937
Likes: 15
From: Alpharetta Georgia
2006 E55, 2006 saab 93 aero, 2010 glk 4m
awesome. Thanks hammer. getting ready to bleed the coolant in my s/c circuit where I usually run 35% MB coolant with distilled water but I figure every little bit will help since I got a 172mm ready to go in.
Each time I think of adding more power and I see your sig I think , damn is it even worth it, why not just get some drags lol.
Each time I think of adding more power and I see your sig I think , damn is it even worth it, why not just get some drags lol.
Member
Joined: Jan 2012
Posts: 194
Likes: 0
2004 E55 (sold) 2012 E350 4M
would I see any issues using distilled water + water wetter? I do not have a split system.
Also on the back of the bottle it suggest purified water...? Any idea why this would be preferred?
Also on the back of the bottle it suggest purified water...? Any idea why this would be preferred?
MB World Stories
The Best of Mercedes & AMG
7 Craziest Things AMG Gas Ever Built
Verdad Gallardo
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know
Verdad Gallardo
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
MBWorld Fanatic!
Joined: May 2007
Posts: 6,406
Likes: 140
From: Clearwater Beach, Florida
2016 Cls63s AMG
MBWorld Fanatic!
Joined: Feb 2009
Posts: 6,897
Likes: 85
From: Central WI (BFE)
SL55, ML500 & Acura TL
On caveat, never run pure water all by itself in a radiator. Some people have because pure water has the greatest capacity to remove heat. The problem is, pure water is actually aggressive in the sense that it loves to dissolve stuff like the material in your cooling system. They don't call water the universal solvent for nothing.
It doesn't take much, like a bit of coolant to buffer pure water and stop in from being aggressive.
Water wetter will break the surface tension of the water and allow it to make better contact with the surfaces in the cooling system thus improving heat transfer.
Apologies for the science lesson.
Member
Joined: Jan 2012
Posts: 194
Likes: 0
2004 E55 (sold) 2012 E350 4M
I think they are just using "purified" as a broader term. Distilling is a form of purification as is de-ionized, or reverse osmosis. There should be no issue with distilled water.
On caveat, never run pure water all by itself in a radiator. Some people have because pure water has the greatest capacity to remove heat. The problem is, pure water is actually aggressive in the sense that it loves to dissolve stuff like the material in your cooling system. They don't call water the universal solvent for nothing.
It doesn't take much, like a bit of coolant to buffer pure water and stop in from being aggressive.
Water wetter will break the surface tension of the water and allow it to make better contact with the surfaces in the cooling system thus improving heat transfer.
Apologies for the science lesson.
On caveat, never run pure water all by itself in a radiator. Some people have because pure water has the greatest capacity to remove heat. The problem is, pure water is actually aggressive in the sense that it loves to dissolve stuff like the material in your cooling system. They don't call water the universal solvent for nothing.
It doesn't take much, like a bit of coolant to buffer pure water and stop in from being aggressive.
Water wetter will break the surface tension of the water and allow it to make better contact with the surfaces in the cooling system thus improving heat transfer.
Apologies for the science lesson.
MBWorld Fanatic!
Joined: Feb 2009
Posts: 6,897
Likes: 85
From: Central WI (BFE)
SL55, ML500 & Acura TL
^ I would look on the label of any product to make sure, but I believe all of the water wetter products like royal purple have corrosion inhibitors in them also. The product toadster listed shows "corrosion protection" on the front of the label.
so it would be okay to run purified water + water wetter only. Of course you have no freeze protection with that set up which is no big deal depending upon where you live.
The old dish soap trick can work, but I would not try it. The stuff in water wetter that breaks the surface tension of the water is surfactant. It is an ingredient in dish soap. Surfactant packages often have foaming agents which are great for cleaning dishes, but not so good for maximizing water contact with the surface of a cooling system. I suspect there is an optimum amount of dish soap to put into a cooling system to break surface tension without foaming, but I don't know what it is. The water wetter products do.
A final note. As I understand it, surfactants are all pretty much the same from product to product. I suspect a product like toadster used is every bit as effective as Royal Purple. That said, I still run Royal Purple.
so it would be okay to run purified water + water wetter only. Of course you have no freeze protection with that set up which is no big deal depending upon where you live.
The old dish soap trick can work, but I would not try it. The stuff in water wetter that breaks the surface tension of the water is surfactant. It is an ingredient in dish soap. Surfactant packages often have foaming agents which are great for cleaning dishes, but not so good for maximizing water contact with the surface of a cooling system. I suspect there is an optimum amount of dish soap to put into a cooling system to break surface tension without foaming, but I don't know what it is. The water wetter products do.
A final note. As I understand it, surfactants are all pretty much the same from product to product. I suspect a product like toadster used is every bit as effective as Royal Purple. That said, I still run Royal Purple.
Last edited by cal1; Jul 9, 2013 at 02:39 PM.
MBWorld Fanatic!
Joined: Apr 2017
Posts: 1,120
Likes: 80
From: Tampa Bay, FL
05 E55, 98 CLK320
So can i just dump a whole bottle of the royal purple stuff in the coolant tank with coolant already in my system?
Or do I have to carefully measure out ratios... I imagined that with coolant even if you have a bit extra of this stuff it shouldn't hurt
please advise
Or do I have to carefully measure out ratios... I imagined that with coolant even if you have a bit extra of this stuff it shouldn't hurt
please advise
MBWorld Fanatic!
Joined: Feb 2009
Posts: 6,897
Likes: 85
From: Central WI (BFE)
SL55, ML500 & Acura TL
Just chuck in one bottle. It works with old antifreeze and new antifreeze. Some run it with distilled water. Better cooling, but I am not sold on it providing enough corrosion protection and lubrication for the water pump personally.
Senior Member
Joined: Sep 2015
Posts: 367
Likes: 36
From: Dawesville, West Australia
2006 E55, 2006 SL55, 2006 LS7 Ute
This is what I have been advised. 100% water has the best heat transfer. In a split tank/ HE system, distilled water is better as mineral deposits will eventually reduce heat transfer. Only add enough antifreeze as necessary for below freezing ambient temps. I now have a KC which needs some antifreeze as the water leaving the KC is often below freezing so says Mr Kincaid. The addition of a surfactant is interesting and I will be looking into that.
