im pretty clueless about car stuff, this may be a dumb question but oh well.
i saw this on a jeep forum and was wondering if it works. anyone used it? the forum said it doesnt lower temp 30 degrees but from tests they did it does lower it about 10-15 degrees.
http://www.redlineoil.com/Products.aspx?pcid=10

 

Dont add anything but dexcool in your system.

 

X 2

Our cooling systems are kind of undersized and DexCool doesn't "work and play well with others" so don't do it.

 

Great ?
I have been using this product since around 1990.Well before the chain stores started stocking it.
Awesome product.
I use it in my blown Small block and it makes a huge difference.
When used with straight water it works best.
I also use it in my 327 in my 55 chevy with anti freeze it helps a little.

I was hoping that it could be used with Dexcool but I would have to agree with Mike and the Judge.
I think Mike worded it best that Dexcool does not play well with others.

 

Yeah what he said ^^^^ :) I've been using it for years in performance and racing applications and it works wonders. In a daily driver with DexCool though I wouldn't mix it. Just my 2 pennies.

 

WHat they said^... great for racing where antifreeze is not allowed..not so great to mix...

 

In my experiences, waterwetter has been a complete waste of money. As others have said, it might work great when running straight water, but I have tried it twice mixed with anti-freeze and didn't get any better results than running without it

Also, on a newer type of car, something like that should not be needed at all anyway.

 

This is what I always heard as well. It's a way to help prevent overheating on a track, where traditional anti-freeze is not allowed.

 

This is the deal. Water wetter is great for race cars that use water. Generally water is the best coolant you can have as this is what most race team use. Note there are some that use a silicon coolant but it is expensive and overkill for the street.

GM has spent a lot of time testing their cooling systems in places like Death Valley and high alt conditions and they pretty much have them dialed in.

Engines today are made to run hot and cooler is not always better anymore like it used to be. They are tuned to do what they do unless some one has reworked the programming to do other wise.

Water Wetter is ok and will not hurt most performance apps.

As for any stock street car today I do not recomend any additives Dex Cool or not.

I remember many people used to use AC Delco water pump lube only to see their hoses get sticky and gooey. The oil often would damage the hosed more than save the pump.

Change you anti freeze at the required times and thermostat and you will be fine.

If you service your car as recomended you do not need all these additives.

 

A couple years ago, I used Water Wetter as a test car, in my HHR, for a period of 5000 miles. The car was fully instrumented for the test. AT BEST, you will see a 2-4 degree difference when WW is matched with Dexcool. As others have mentioned, results will be different if you use straight water (or a minimal amount of DexCool)......the manufacturer states this in their description.

I did get a new radiator, flush and coolant in the deal.

Logical opinion.....not worth the money, if you use DexCool.

I'll stick with straight DexCool.

One thing I did notice.....the more you increase speed, over 65-70 MPH, the less efficient the cooling system.....particularly in hot weather. I think the water pump is limited in moving enough coolant to maintain a 195-200 degree efficient system.