BINGO!!
DexCool or 50/50
Thread Starter
Instructor
Joined: Apr 2014
Posts: 194
Likes: 10
From: Coral Springs Florida
DexCool or 50/50
I finally got the new motor back in and getting ready to fire it up. My question is:
Should I just run straight dexcool? Or cut it 50/50. Is it ok to cut dexcool with water? The car is in south florida so I don have to worry about it freezing. Just have to figure out how many gallons to pick up when I head to the header
Should I just run straight dexcool? Or cut it 50/50. Is it ok to cut dexcool with water? The car is in south florida so I don have to worry about it freezing. Just have to figure out how many gallons to pick up when I head to the header
Melting Slicks
Joined: Dec 2004
Posts: 2,655
Likes: 635
From: Dallas TX
dexcool concentrate MUST be cut 50/50. Pre-mix is junk anyway.
3-4 gallons total.
Easiest way is to have 2 gallons of Dex concentrate(prestone is good) and 2 gallons of distilled water. Mix in a 5 gallon bucket. Pour back into the 4, 1 gallon containers.
3-4 gallons total.
Easiest way is to have 2 gallons of Dex concentrate(prestone is good) and 2 gallons of distilled water. Mix in a 5 gallon bucket. Pour back into the 4, 1 gallon containers.
Thread Starter
Instructor
Joined: Apr 2014
Posts: 194
Likes: 10
From: Coral Springs Florida
Sounds like a plan to me. I do not have to get the dex from the dealer correct? anything to not step foot in that place
Drifting
Joined: Jul 2005
Posts: 1,630
Likes: 188
From: Austin TX
Race Director
Joined: Sep 2000
Posts: 11,139
Likes: 1,912
From: Missouri City, TX
Straight anti-freeze concentrate is a bad idea which is what the OP appears to be implying. It has a specific heat coefficient well below water (0.60 vs 1.0). 50/50 mix results in a SH coefficient of about 0.80. So you can see that you will lose 25% of the thermal capacity of your cooling system with 100% anti-freeze concentrate in lieu of 50/50 which is what the system is thermally designed. The unit of measure for SH is BTU/(lb-degF). Cars cooling systems are sized to handle the lower specific heat of 50/50 mix so that the cars can have reasonably low temp freeze protection and the corrosion inhibitors that are included in anti-freeze mix.
Race Director
Joined: Sep 2000
Posts: 11,139
Likes: 1,912
From: Missouri City, TX
Safety Car
Joined: Feb 2007
Posts: 4,684
Likes: 107
From: Opelika Alabama
since your going with a complete fill if it was me.... 1 bottle water wetter{1 1/2 me} distilled water get it at Wal-Mart or any food store since your in fla 1 gallon Dex-cool and the rest water, the water wetter works better with more water and believe me it works, put it in first you don't want it to sit in the overflow tank if you put it in last
Last edited by CMY SIX; Jun 16, 2016 at 09:01 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski