Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 05-12-2001, 03:22 PM
engatwork's Avatar
Join Date: May 2000
Location: Soperton, Ga. USA
Posts: 11,878
Dow Corning + Union Carbide = Dow. There is no Dow Corning or Union Carbide now. Dow manufacturers ethlyene glycol in Charlestion, WV in large qualities.
Reply With Quote
Old 05-12-2001, 07:17 PM
longston's Avatar
Another View. . .
Join Date: Dec 2000
Location: Mark West, CA
Posts: 787
Split Enz...


This may be true, but that "merger" was as recent as Feb. 2001, and Chem Expo still has them listed as two separate companies for now. In fact, Chem Expo News lists the following Ethylene Glycol manufacturers in the U.S., as of date of publication:

And, Dow/Union Carbide lists their EG manufacturing plant in the U.S. as being in Plaquemine, LA.

There seems to be a lot of EG plants in Louisiana...
"We drive into the future using only our rearview mirror."
- Marshall McLuhan -

Scott Longston
Northern California Wine Country...
"Turbos whistle, grapes wine..."
Reply With Quote
Old 05-17-2001, 12:47 PM
engatwork's Avatar
Join Date: May 2000
Location: Soperton, Ga. USA
Posts: 11,878
eye opening experience

I purchased one of the Prestone "testers" and used it on the E320. The percentage was around 55% MB coolant/45% water. I drained some out and got the mix a 40% coolant/60% water. Man, what a difference in running temperature. I would have never imagined that it made as much difference as it did.
Thanks for putting me on that tester.
'85 300D
'95 E320
'97 CRV
Reply With Quote
Old 06-16-2001, 08:35 PM
Registered User
Join Date: May 2000
Location: Boise, Idaho
Posts: 80
I've posted this information, from and Miata site, on the Diesel discussion. I hope this helps those who do "searches" about what Water Wetter will do for your cooling system.

Redline "Water Wetter"

Does it really work?


Does it work? I cannot give a conclusive answer to that question. But I like "Water Wetter" and have been using it in all of my cars for many years now.
What I can say with conviction is that the person who wrote Redline's Technical Information brochure on "Water Wetter" knew what he or she was talking about. I have a Ph.D. in Heat Transfer and have taken a graduate course in Boiling and Condensation. Based on my training I can say that Redline's explanation of their product makes good scientific sense.

First we must dispel a common misconception: "Water Wetter" is not designed to lower your car's bulk coolant temperature. So if you put it in your E30 M3 hoping to see lower operational coolant temp's, then you will probably be disappointed.

"Water Wetter" is designed to reduce hot spots in your cylinder head. It does this by reducing the build-up of water vapor in any superheated areas. The bad thing about having hot spots in your cylinder head (read combustion chamber) is that they can promote pre-ignition - definitely a bad thing. This harks back to Smokey Yunick's theory of "soft combustion chambers". Any sharp edges in your combustion chamber (around valve seats for example) may tend to get very hot (even red hot) during operation. These areas of the combustion chamber can then form local hot spots in the cooling passages. Thus, even though your bulk coolant temperature is well below its boiling point (i.e. your gauge reads just fine), there may be localized boiling in some regions of the coolant tract.

This localized boiling can cause a layer of water vapor to form over the hot spot. This vapor forms an insulative blanket and prevents heat from leaving this area, thus making the hot spot even worse. But reducing the surface tension of the water makes it easier for vapor bubbles to leave the surface of the cylinder head and allows the bubbles to convect heat away from the area. Something that changes the surface tension of a liquid is called a "surfactant". It does not take very much surfactant to significantly change the surface tension of water. Hence, you do not need to add very much "Water Wetter" in order for it to do its job.

An additional benefit of using "Water Wetter" (in conjunction with 100% water) in you cooling system is that water has an extremely high heat capacity. Thus a gallon of 100% water can carry more heat away from you engine than an equivalent gallon of 50/50 water and coolant. Water also has a high thermal conductivity which increases the convection of heat away from the coolant passage walls and into the free stream of the liquid flowing through the passages.

"Water Wetter" does not increase the boiling point of water. Standard automotive coolant does increase the boiling point of the mixture above that of 100% water. But remember that if your cooling system is operating properly, it should never get hot enough to boil (I mean BOIL, not just localized boiling). Raising the boiling point of the coolant in passenger cars is primarily a safety measure, so that if the cooling system is over stressed (climbing a hill on a hot day with AC on), it will not boil over. On performance cars the primary duty of the cooling system is to keep the engine in its optimum temperature range. This is best accomplished with 100% water, because its high heat capacity makes it very efficient at transferring heat.

Performance cars often run relatively high cooling system pressures. This also raises the boiling point of the coolant. But the high system pressure is not used to avoid boiling so much as to allow the engine to operate at a higher temperature for reasons of efficiency. A higher cooling system bulk temperature also allows the use of a smaller radiator (there is a greater driving force to transfer heat from the coolant to the free stream air). Take a look at the E30 M3's "tiny" radiator and you will see what I mean.

1983 300CD 246k sold
1998 C230 52k
1980 450SL 75k needs AC
1999 Subaru Outback Ltd 43k
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Radiator blew up Scott98 Diesel Discussion 15 02-24-2004 07:57 PM
Water Wetter Questions?? jgauto Tech Help 3 08-30-2003 11:12 PM
Adding Water Wetter Ken Griffith Tech Help 19 06-30-2002 01:40 PM
Red Line water wetter burnan Diesel Discussion 7 01-29-2002 04:52 PM
Water Wetter Testamonials -- Thanks! Brian16V Tech Help 0 03-22-2000 12:58 PM

All times are GMT -4. The time now is 06:02 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page