Coolant Additive
Drifting
Joined: Sep 2009
Posts: 1,719
Likes: 4
From: cinnaminson n.j.
St. Jude Donor '14
Unless your running in extreme heat or a road course. You shouldn't need it. That said, I've heard it does work. If your car is running hotter than normal, you should correct the problem first.
Le Mans Master
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
Do a system flush and replace with Dex and distilled water
Burp the system
Check the hoses
Buy a new pressure cap
Check for a stuck t-stat
Check to make sure the WP is working
Make sure the space between the radiator and the A/C is clean
Start with the above and get back to us.
Intermediate
Joined: Jun 2014
Posts: 45
Likes: 0
Red- Line makes Water Wetter, Supposed to lower temps maybe 8 degrees, I have used on forced induction cars and it helped I think, But pretty hard to tell unless you have an accurate gauge and before and after testing
Team Owner
Joined: May 2001
Posts: 87,294
Likes: 1,579
From: Western NY
Problem is, if you want to run regular, green coolant in a car that has had Dex-Cool in it previously, unless you get 1000% of the Dex-Cool out FIRST, you'll have a HUGE mess in your cooling system. Those two products DO NOT mix..........
And there's nothing really wrong with Dex-Cool, as long as you maintain the fluid level in the radiator/expansion tank, and you DO change it every 5-6 years.
And there's nothing really wrong with Dex-Cool, as long as you maintain the fluid level in the radiator/expansion tank, and you DO change it every 5-6 years.
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Problem is, if you want to run regular, green coolant in a car that has had Dex-Cool in it previously, unless you get 1000% of the Dex-Cool out FIRST, you'll have a HUGE mess in your cooling system. Those two products DO NOT mix..........
And there's nothing really wrong with Dex-Cool, as long as you maintain the fluid level in the radiator/expansion tank, and you DO change it every 5-6 years.
And there's nothing really wrong with Dex-Cool, as long as you maintain the fluid level in the radiator/expansion tank, and you DO change it every 5-6 years.
Dexcool was first installed in Corvettes back in '95 and it does work very well for those who want to use something like a 50K-mile or 5-year coolant change interval. There's no real reason to use a green ethlyene-glycol coolant in later GM cars. Especially if you don't do a near surgical cleaning out of the Dexcool first.
As far as using Water-Wetter, it will lower coolant temps a small amount but if a cooling system is in good condition, there's no real need to use it. I have heard that it helps with coolant flow but it has a fairly short life, maybe 6 months to a year.
I use it in my '87 autocross/track day car but only because I don't use a full 50-50 mix of anti-freeze in the summer; it's usually 5% or so. A boil-over or sudden coolant loss on a road course makes as mess as anti-freeze won't evaporate like plain water will. And anti-freeze is slippery and can remain on a track surface for extended periods if it's not cleaned up.
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