Water Wetter?

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Its biggest advantage is that it allows you tho run straight water in your cooling system.
It also has a bigger impact when run with just water.
It could potentially help your car warm up faster in winter. I think that's the only substantial advantage for street driven cars.
 
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I still put it in all my cars. I live in Florida and use a 70/30 water/coolant concentration (which is the bare minimum suggest to use in order to control corrosion). Since Water Wetter also help control corrosion, i'm not worried at all.

From what i've seen on my Scan Gauge II's read out, it seems as though the temps drop down further and take longer to reach the point when the fans kick on. That along with throttle body and intake manifold coolant bypass results in a MUCH cooler engine bay after taking a drive.

IMO and as well as faith in Redline, i choose to believe that it works.
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In Theory: IF whatever coolant mixture you're using has excessive surface tension (as straight water does), then Water Wetter should improve heat transfer between the engine and coolant, and between the coolant and radiator. As Shannow points out, this wouldn't really reduce average coolant temps in a car with a properly functioning cooling system and thermostat. What it could do is reduce the number and severity of "hot spots" in the engine.

In Practice: Don't Red Line's own advertising materials indicate that Water Wetter makes a minimal difference when using a 50/50 coolant mixture? I have a hard time imagining that any of the potential benefits would be noticeable at all, but YMMV I guess...

I tried it in my car. I stopped using it because it made brown bubbles appear at the top of the coolant expansion tank, which I don't want to see unless the head gasket has failed. I have no way to tell what effect it had on the efficiency of the cooling system.
 
Just use 50/50 proper coolant for your car and change it regular as needed and you won't have problems and that way you keep the cooling system clean and corrosion free and that is what really makes a long time difference.
 
In a modern car, I wouldn't worry about it. I've heard of people using in classic cars, say from the 30s, 40s, etc that do not have a thermostat and were designed to run on straight water. I can't say that I've used it in my Model A though...I just use a 50/50 with green antifreeze and haven't had issues with overheating related to that. It did blow a headgasket and then overheated though...but I don't feel that was related to the green coolant. A lot more to do with somewhere around 40 years or so on the motor.
 
Originally Posted By: bobbob
Does this stuff work? Thanks


Extremely platform specific. It may help some cars with issues.

It is unlikely to do much in most modern vehicles as the cooling systems have been carefully optimized for emissions and economy.
 
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