Coolant for Aluminum Radiator - Team Camaro Tech
Heating & Cooling Heating, cooling and air conditioning

 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old Mar 1st, 07, 07:42 PM Thread Starter
Team Member
Tony
 
Ghostbuster's Avatar
 
Join Date: Jan 2006
Location: Littleton, CO
Posts: 976
Garage
Cool Coolant for Aluminum Radiator

I've been reviewing some posts on anti-freeze and am a little confused.

This is a '68'vert, 383, no heater yet, (stock size) aluminum radiator.

..So far, (from TC search) it looks like:
  • Dex-cool is bad?
  • Zerex or green Prestone is good?
  • Open cooling system can hurt Aluminum radiator and heads?
  • 50/50 is pre-mixed, doesn't need water, but is (2x$) expensive?
  • Regular Prestone needs to be mixed with water? (straight Glycol will freeze?)
  • sounds like tap water is bad, but I'm not sure if I need distilled or de-ionized?
  • 180* thermostat? (it's supposed to snow tomorrow)
  • Standard cooling system (with heater) is 3.7 gal?
I think the last time I bought coolant was in the early 80's, so I need some expert advice on new technology.
The list above was gathered from a few searches on TC, (coolant/radiator/anti-freeze).
I did see views on both sides, but tried to list the common consensus.
I listed each item above as a ?question? to get a correction, comfirmation or any additional views.

..am I missing anything?

Last edited by Ghostbuster; Mar 1st, 07 at 11:13 PM.
Ghostbuster is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old Mar 1st, 07, 09:35 PM
 
Join Date: Jan 2007
Posts: 50
Re: Coolant for Aluminum Radiator

Looks like your info is right on in my opinion anyhow. My radiator guy, who has been in buisiness since moses was still alive, says dex cool is no good, when it gets hot it seems to form some kind of sludge or something. At least that is what he said causes the stuff I have been finding in some of our late model chevys. As for straight Glycol, I hear it wont cool properly, it needs the water for the cooling. As I recall, you want distilled water, but de-ionized may be good too but I have no idea on that one.
1511tim is offline  
post #3 of 7 (permalink) Old Mar 1st, 07, 10:44 PM
Senior Tech
Jon
 
Rodder's Avatar
 
Join Date: Jul 2006
Location: Roswell, GA
Posts: 1,432
Send a message via AIM to Rodder Send a message via Yahoo to Rodder
Re: Coolant for Aluminum Radiator

I pretty much agree with all of the above... dexcool bad, prestone good, premix is a ripoff, use distilled water from the grocery store, cooling system needs pressure to work properly and avoid creating steam pockets in the heads.

Straight glycol has crappy heat transfer properties. It won't freeze, but you may overheat.

Thermostat temps are a religious discussion. Thermal efficiency vs volumetric efficiency. Volumetric wins for most SBCs (assuming you're goal is power). Some people say thermal wins on LSX's with plastic intakes and some form of cold air induction, but I haven't seen any dyno numbers to back that up.
Rodder is offline  
 
post #4 of 7 (permalink) Old Mar 2nd, 07, 07:22 AM
Senior Tech
 
Join Date: Dec 2001
Location: Fairfield, CA
Posts: 6,246
Re: Coolant for Aluminum Radiator

Evans has some interesting info on their Non-Aqueous Propylene Glycol systems.

http://www.evanscooling.com/main21.htm
onovakind67 is offline  
post #5 of 7 (permalink) Old Mar 2nd, 07, 08:36 AM
Super Moderator
Bess-68's rule
 
Everett#2390's Avatar
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 32,166
Garage
Re: Coolant for Aluminum Radiator

Quote:
Originally Posted by Rodder View Post
Straight glycol has crappy heat transfer properties. It won't freeze, but you may overheat.
Yes, it does. Straight ethylene glycol will freeze.

Straight propylene gylcol does not freeze.

Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
'
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden enjoy your next chapter.
Everett#2390 is online now  
post #6 of 7 (permalink) Old Mar 2nd, 07, 09:47 AM
Senior Tech
Don
 
ZZ_430's Avatar
 
Join Date: May 2001
Location: Houston, Texas
Posts: 4,491
Re: Coolant for Aluminum Radiator

I found out long ago that straight ethylene glycol will freeze.
We used to keep 55 gallon drums in an outside shed that was in the shade all winter. It didn't freeze solid, but would slush over for sure when it got below 0.

I made the mistake of using Dexcool in my 67 when I first built it. Everything they say is true. Never use it in an open system.

Don ~ TC Member #15 ~
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Don't mess with Texas!
ZZ_430 is offline  
post #7 of 7 (permalink) Old Mar 2nd, 07, 10:38 AM
Gold Lifetime Member
Harry
 
dawg's Avatar
 
Join Date: Mar 2004
Location: Colebrook CT.
Posts: 4,054
Re: Coolant for Aluminum Radiator

griffin radiator said that any low or no silicate antifreeze is ok.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

434 stroker
US Navy retired

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
dawg is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Type of coolant to use in Aluminum Radiator? tz1238 Heating & Cooling 1 Sep 13th, 05 11:21 AM
PepBoys3row radiator doesn't fit '68straight6/fiberglass parts a mistake?/bad gage? richcamaro68 Heating & Cooling 2 Jul 27th, 04 03:15 PM
Radiator Coolant gr868 Tech 2002 2 Dec 4th, 02 03:29 PM
is 220 bad? jvolk81 Tech 2001 15 Oct 26th, 01 02:11 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome