Wow! this topic still exists. All I can say it will make a small but noticeable difference in temp changing. Depending how you mix it but, don't expect it to do miracle cures.

As for corrosion it does not really have any properties for that. You have to buy a separate product that comes in pink crystal form for anti-corrosion and mixing it with water wetter for people who like no coolant just, water wetter, redline crystals, and water. It is available from Redline I think still. If you are using coolant, water, and water wetter. The anti-corrosion will be from your coolant not, the Water Wetter itself.

The result is a little difference but, thermoswitch upgrade would probably be much better way to go. Read it somewhere from someone on this Forum but, it only applies to certain specific models of MBs

BTW, I stopped using Redline Water Wetter , Redline Anti-Corrosion crystals,Water Wetter, and distilled water corroded my radiator on a different car..

I use waterwetter as well as other Redline products. I view WW as an additive which provides better heat removal at every place that coolant would normally cavitate. Therefore, less engine deposits in those places. Inaddition, a longer water pump life. It seems like inexpensive treatment for the two to three year coolant replacement period. I don't expect a decrease in temperature reading of the coolant, although it does seem possible if your engine has a lot of coolant cavitation surfaces.

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

I use RedLine's Water Wetter and Total Fuel System Treatment in both Benzes. I'll admit I can't say I see cooler temperature readings but I believe it does help.

With the fuel treatment I can attest to a 10% increase in fuel mileage. Great stuff.

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Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.

I recently added 2 bottles of the stuff and did not see a real difference. But I also believe in Redline products from previous experience, and if this adds any level of protection to the cooling system, it's worth my $10. Just my opinion of course. Eli.

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'90 500SL (sold)
17" AMG's

From Redline's website (can also be found on the back of the bottle):

WaterWetter®
TECHNICAL INFORMATION
Red Line WaterWetter® is designed to provide improved metal wetting and excellent corrosion inhibition when added to plain water or a glycol coolant ... Red Line WaterWetter® will provide the proper corrosion inhibition for all cooling system metals, including aluminum, cast iron, steel, copper, brass, and lead.

~Paul

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'91 300E, 214K miles