Water Wetter vs Diesel Water Wetter

[Triple C]

I have searched and read the threads ref Water Wetter and have not found an answer. In the description of Diesel Water Wetter it says " without the rust and corrosion inhibitors". I would like to try WW but I can't find the Diesel version in my area. Besides the inhibitors is there a big difference between the two. I am considering taking my '85 300D-T, 215K on a long road trip and think it would be beneficial. Any recommendation from WW users? Thanks in advance, C3!

[dieseldiehard]

you could email Redline and ask them to clarify this. I use Diesel WW and get it whenever I order RedLine trans fluid, etc. from http://www.importpartsspec.com
Read the directions because a whole bottle is not recommended, just about 1/5 a bottle per radiator/car. If you have an engine with an aluminum head the corrosion inhibitors might be a good thing, although there are plenty in MB antifreeze.

[Triple C]

Thank you for contacting Red Line Oil, in your Mercedes diesel cooling system I would recommend the regular WaterWetter. The Diesel WaterWetter is designed for extremely large commercial diesel cooling systems that have a supplemental corrosion package metered into the cooling system. In your smaller cooling system the regular product would be suitable and would allow a reduction in the antifreeze concentration that will further improve the heat transfer.

The Diesel WaterWetter just contains the active heat transfer agent, the regular WaterWetter in addition also contains rust and corrosion protection as well as water pump seal lubricants.

[EC93SE]

Originally Posted by Triple C

Thank you for contacting Red Line Oil, in your Mercedes diesel cooling system I would recommend the regular WaterWetter. The Diesel WaterWetter is designed for extremely large commercial diesel cooling systems that have a supplemental corrosion package metered into the cooling system. In your smaller cooling system the regular product would be suitable and would allow a reduction in the antifreeze concentration that will further improve the heat transfer.

The Diesel WaterWetter just contains the active heat transfer agent, the regular WaterWetter in addition also contains rust and corrosion protection as well as water pump seal lubricants.

Is there a procedure that should be followed before adding waterwetter vs. just pouring a bottle into your cooling system? I added a bottle of regular waterwetter to my 240D prior to my trip to the Indy F1 race a month ago and noticed no lowering of operating temps. Didn't run hotter either, FWIW.

[Triple C]

EC93SE,
Besides following the manufacturer's recommendations, have you done a flush of your coolant system lately? When I test drove my '85 that is when the Radiator neck decided to break so I knew I had fresh coolant, even if the indy/po used the "green" coolant. In the DC area, specifically on the Beltway traffic cango from 70+mph to a crawl so I will read up on the best ratio then do that. Do a search on this forum as well. Having only own my MB for a short time, reading and searching this forum has added volumes to my knowledge.
Chris

[sokoloff]

The purpose of Water Wetter isn't to reduce your car's cooling system temperature under normal operating conditions. It is to allow better heat transfer to reduce the amount of temperature increase under more severe driving conditions. It works too. My 240D used to run at about 80 to 85 degrees under normal driving conditions, but under a steep hill climb, it would rise to 90 or 95. Now with the Water Wetter in it, the temperature is rock solid steady at 80 to 85 all the time.

Len

[WannaWagon]

I just went through this also and put the standard WW in my wagon because the diesel version wasn't available in my area. The import parts shop told me the same stuff that the Redline rep quoted above said. The diesel version also comes in a larger version to account for the much larger cooling systems in commercial trucks, and we don't need that. I added my standard WW to the overflow tank and I can see by the color that it has slowly mixed into the whole system. And I've noticed the difference in coolant temps already, especially with local weather getting over 100 degrees lately!

[JimF]

. . my gas engine, and found that it leaves an oil-like film that can be seen in the overflow cannister. This was confirmed by WW personnel.

I've switched to Purple Ice and there's no residue. More details in MENU#17.

[bennett]

Is water -wetter only available online or do some chains parts houses sell it?

[rs899]

For one- Advance Auto Parts has it. And there's a $2 rebate on it currently.