DEX-cool v.s. GREEN STUFF- EVERYONE
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Joined: Feb 2000
Posts: 1,335
From: Cleveland,OH
Re: DEX-cool v.s. GREEN STUFF- EVERYONE
Originally Posted by Wckd94Z
everyone should just run straight hose water like i've been doing since 94 
all of this coolant is a bunch of **** anyways 
all of this coolant is a bunch of **** anyways 
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Joined: Dec 1969
Posts: 27,725
From: Little Rock, AR
Re: DEX-cool v.s. GREEN STUFF- EVERYONE
Originally Posted by Kurt Crosbie
When did camaro z28's start getting DEX from the factory?
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Joined: Oct 1999
Posts: 584
From: Naperville, IL, USA
Re: DEX-cool v.s. GREEN STUFF- EVERYONE
There are TSBs about DexCool. The dealers are evening flushing and putting in the green coolant I switched to DexCool years ago when I rebuilt my engine (old set up), then quickly switched back to the green coolant after a flush. I have used it ever since. My 2001 Acura Integra GS-R came with the green coolant... looked fine after 100,000 miles. Flushed it a few months ago and used green coolant again. 
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Joined: May 2005
Posts: 478
Re: DEX-cool v.s. GREEN STUFF- EVERYONE
Originally Posted by Injuneer
So basically, you're saying those of us who have succesfully used Dex-Cool for up to 10 years don't have the slightest idea what we are talking about?
Sorry I wasted your time. I won't make that mistake again.
Sorry I wasted your time. I won't make that mistake again.
I'm so not even trying to question your knowledge about the fact....but im just going on what this post has made me realize. There is not one case of the sludge build up in the case of green coolent. There is with the DEX... maybe your one of the lucky ones or maybe you did something different or its just my luck....but i have had the sludge....gone without heat in the car...so im going green after my flush...
sorry if i came off like a smart @$$ didnt mean to...just trying to keep it fun
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Joined: Feb 2000
Posts: 1,445
From: Seattle, WA
Re: DEX-cool v.s. GREEN STUFF- EVERYONE
No green sludge?! Wow... apparently you're ignoring over 60 years of data.
Coolant with excessive contaimination will ALWAYS sludge.
Typically this happens in small passengaes with little coolant flow. In traditional V8's this usually happened in the heater core and resulted in having to flush or replace the core.
The LT1's coolant design does not have this problem as the heater core gets full-pump pressure to keep it clear. In fact, the pump design was selected to ensure the heater core gets enough flow at idle to keep the core clear.
Long-life Truck coolants have increased silicate in their green stuff to increease service life, but this coolant is known to cause problems in passenger cars and light trucks due to the increased silicate and smaller passages. Large fleet trucks have coolant systems designed to avoid sludge in the green stuff becasue it is a KNOWN PROBLEM.
Coolant with excessive contaimination will ALWAYS sludge.
Typically this happens in small passengaes with little coolant flow. In traditional V8's this usually happened in the heater core and resulted in having to flush or replace the core.
The LT1's coolant design does not have this problem as the heater core gets full-pump pressure to keep it clear. In fact, the pump design was selected to ensure the heater core gets enough flow at idle to keep the core clear.
Long-life Truck coolants have increased silicate in their green stuff to increease service life, but this coolant is known to cause problems in passenger cars and light trucks due to the increased silicate and smaller passages. Large fleet trucks have coolant systems designed to avoid sludge in the green stuff becasue it is a KNOWN PROBLEM.
Thread Starter
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Joined: May 2005
Posts: 478
Re: DEX-cool v.s. GREEN STUFF- EVERYONE
ok ok so maybe i was being a little to sarcastic...lol I didnt mean to say that i havent seen the green stuff sludge up, but with regular maint. I have never seen it...there that came out a lot better. And when i said that... i was meaning there hasnt been one case of green slude build up with the people that have posted on THIS thread as far as F-body's go ....whoops...lol
Originally Posted by Steve in Seattle
No green sludge?! Wow... apparently you're ignoring over 60 years of data.
Coolant with excessive contaimination will ALWAYS sludge.
Typically this happens in small passengaes with little coolant flow. In traditional V8's this usually happened in the heater core and resulted in having to flush or replace the core.
The LT1's coolant design does not have this problem as the heater core gets full-pump pressure to keep it clear. In fact, the pump design was selected to ensure the heater core gets enough flow at idle to keep the core clear.
Long-life Truck coolants have increased silicate in their green stuff to increease service life, but this coolant is known to cause problems in passenger cars and light trucks due to the increased silicate and smaller passages. Large fleet trucks have coolant systems designed to avoid sludge in the green stuff becasue it is a KNOWN PROBLEM.
Coolant with excessive contaimination will ALWAYS sludge.
Typically this happens in small passengaes with little coolant flow. In traditional V8's this usually happened in the heater core and resulted in having to flush or replace the core.
The LT1's coolant design does not have this problem as the heater core gets full-pump pressure to keep it clear. In fact, the pump design was selected to ensure the heater core gets enough flow at idle to keep the core clear.
Long-life Truck coolants have increased silicate in their green stuff to increease service life, but this coolant is known to cause problems in passenger cars and light trucks due to the increased silicate and smaller passages. Large fleet trucks have coolant systems designed to avoid sludge in the green stuff becasue it is a KNOWN PROBLEM.
Last edited by baddboy1705; Aug 14, 2006 at 04:59 PM.
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Joined: Oct 1998
Posts: 226
From: Raleigh, NC
Re: DEX-cool v.s. GREEN STUFF- EVERYONE
http://www.acdelcotechconnect.com/pd..._04D-J-054.pdf
A good read..considering possible warranty issues...
Doug
A good read..considering possible warranty issues...
Doug
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Joined: Mar 2006
Posts: 64
Re: DEX-cool v.s. GREEN STUFF- EVERYONE
There appears to be a misconception that DexCool is the only extended life anti-freeze available. It's not. Several manufacturers offer their own versions. In addition, Prestone offers a "green" 5/150,000 non-DexCool anti-freeze. Search Dexcool controversy on Google and form your own, educated opinion. As everyone has stated, no matter what you use you have to keep your system in good working order and follow the recommended maintenance intervals.
Thread Starter
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Joined: May 2005
Posts: 478
Re: DEX-cool v.s. GREEN STUFF- EVERYONE
Originally Posted by multicar
http://www.acdelcotechconnect.com/pd..._04D-J-054.pdf
A good read..considering possible warranty issues...
Doug
A good read..considering possible warranty issues...
Doug
just wondering....where did you find this info at?
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Joined: Nov 2005
Posts: 840
From: Nashville, TN
Re: DEX-cool v.s. GREEN STUFF- EVERYONE
from personal experience, my original 305tpi had 156,000 on it when I ripped it out, during the disassembly I noticed serious pitting in the t-stat housing and intake, these pieces are odviously aluminum. the car had only ran the green stuff up to that point and I didnt notice any sludge build up. I think it would be a good idea that if your going to have coolant in contact with aluminum it shouldnt have properties that tend to eat away the aluminum. I've been running Dex for 4-5 years and didnt notice any pitting or sludge when I pulled and rebuilt it in the spring.
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Joined: Dec 1969
Posts: 27,725
From: Little Rock, AR
Re: DEX-cool v.s. GREEN STUFF- EVERYONE
Originally Posted by baddboy1705
just wondering....where did you find this info at?