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Old 03-22-2003, 04:45 PM   #1
Scooby Newbie
Member#: 30428
Join Date: Nov 2002
1999 Impreza 2.5RS

Smile Redline WaterWetter???

Have anyone using this "redline waterwetter" in their car? I just bought one, but don't know how to apply it. It would be great if someone can give me some directions on it! Thanks.
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Old 03-22-2003, 07:04 PM   #2
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Member#: 21767
Join Date: Jul 2002
Location: Los Angeles
2002 STi wannabe
Midnight Blue Swirl


I use the Redline Water Wetter in my car... I noticed absolutely no subjective difference, but I have no objective measurement means other than the stock water temp gauge (which did not change after the addition of water wetter).

1) Open cap
2) Open foil wrap
3) dump into coolant tank.

Actually, if your coolant level is full when your car is completely cold, you need to siphon out the approximate contents of the Water Wetter bottle. Since I needed to top off my coolant anyway, I was good to go by just adding it in.

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Old 03-22-2003, 11:35 PM   #3
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Join Date: Oct 2001
Location: Rocklin, California
2002 2.5 RS
Black as Midnight!!!


um...arent there directions on the bottle?

I believe you jsut add it to the coolant.
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Old 03-23-2003, 12:34 AM   #4
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Member#: 16679
Join Date: Mar 2002
Location: MN
2004 Forester XT


It'd be better to do a coolant flush and mix it into the radiator when you're refilling. That way, you won't be overfilling the already filled radiator.
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Old 03-23-2003, 01:12 AM   #5
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Join Date: Feb 2003
Location: Castle Rock CO

unless you're running pure water for the track or something, I'd skip it. I ran it in my motorcycle (aprilia, with a digital water temp gauge) and noticed ZZZZERO degrees difference over straight antifreeze blend.
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Old 03-23-2003, 01:14 AM   #6
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Join Date: Dec 2002
Location: Sonoma, CA
2002 WRX


Your car will run just as hot after you put the waterwetter in as it did before. The thermostat determins the operating tempurature. What the waterwetter does is increase the cooling capability of the coolant. In basic terms, the car will cool down faster but, will operate at the same temp.
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Old 03-23-2003, 02:14 AM   #7
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Location: Castle Rock CO

the thermostat is open or closed, once you hit XX degrees it opens. You probably don't run right at 180F or w/e the stat is. Bottom line the stuff is ideally to improve the cooling properties of pure water. The bottle says you can run it in glycol but I don't believe that was ever the intention.

Last edited by philip_g; 03-23-2003 at 02:24 AM.
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Old 03-23-2003, 02:44 AM   #8
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Chapter/Region: BAIC
Location: between redwoods and vineyards
Default I'd swear by it!!

I had this product placed in my car when it had the head gaskets replaced, and the car seems to run one notch cooler on the temp gauge then before the head gaskets blew. Which when I'm running at speed on the back roads, is VERY important.

'Officer, I was only doing 55 (using base 2 math)'
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Old 03-23-2003, 02:04 PM   #9
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Chapter/Region: MAIC
Location: Fairfax VA
2005 STi, SpecMiata
05 NASA SM - Most Wins


you dont have to overfill the radiator, you just have to take some coolant out (turkey baster). I use it, though without a temp guage, and on my stock car, I couldnt tell you if it works, as a few degrees difference wont be noticable. I got it for piece of mind on the track.

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