Re: Dexcool and Mopars
[Re: 734x4PW]
#3203602
01/10/24 03:03 PM
01/10/24 03:03 PM
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Joined: Jan 2003
Posts: 7,541 Albany, NY
67SATisfaction
The member whose name is actually Art
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The member whose name is actually Art
Joined: Jan 2003
Posts: 7,541
Albany, NY
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Dang it... I was just given 8 gallons of Dex-Cool by a friend moving out of town.. glad I checked here before using it.. Seems like the crap is useless to me. Moral Question: Shall I just give it all to a GM friend and let them suffer the consequences? - Art
65 Satellite hardtop 361/4bbl console 727 2.76 67 Satellite convert 383/2bbl column 727 3.23 67 Lancia Fulvia Sport 1.3 Zagato. Alloy body, 1.3L V4 DOHC 4-spd 67 Lancia Fulvia Rallye 1.3. Alloy panel, 1.3L V4 DOHC 4-spd 71 Alfa Romeo GT Junior 1300 Zagato, 1.3L 4cyl DOHC hemi 5-spd 82 Alfa Romeo GTV6 2.5L SOHC hemi V6 5-spd transaxle 75 Maserati Bora US spec 4.9L DOHC hemi V8 5-spd ZF 77 Maserati Khamsin Euro spec 4.9L DOHC hemi V8 5-spd ZF 07 Aston Martin DB9 6.0L DOHC V12 6spd transaxle
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Re: Dexcool and Mopars
[Re: 67SATisfaction]
#3203611
01/10/24 03:32 PM
01/10/24 03:32 PM
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Joined: Jan 2003
Posts: 75,050 U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,050
U.S.S.A.
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Dang it... I was just given 8 gallons of Dex-Cool by a friend moving out of town.. glad I checked here before using it.. Seems like the crap is useless to me. Moral Question: Shall I just give it all to a GM friend and let them suffer the consequences? - Art That depends , is it a GOOD friend ...
running up my post count some more .
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Re: Dexcool and Mopars
[Re: JohnRR]
#3203617
01/10/24 03:45 PM
01/10/24 03:45 PM
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Joined: Jan 2003
Posts: 7,541 Albany, NY
67SATisfaction
The member whose name is actually Art
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The member whose name is actually Art
Joined: Jan 2003
Posts: 7,541
Albany, NY
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Dang it... I was just given 8 gallons of Dex-Cool by a friend moving out of town.. glad I checked here before using it.. Seems like the crap is useless to me. Moral Question: Shall I just give it all to a GM friend and let them suffer the consequences? - Art That depends , is it a GOOD friend ... hm... .. can *any* GM owner really be a "good" friend?
65 Satellite hardtop 361/4bbl console 727 2.76 67 Satellite convert 383/2bbl column 727 3.23 67 Lancia Fulvia Sport 1.3 Zagato. Alloy body, 1.3L V4 DOHC 4-spd 67 Lancia Fulvia Rallye 1.3. Alloy panel, 1.3L V4 DOHC 4-spd 71 Alfa Romeo GT Junior 1300 Zagato, 1.3L 4cyl DOHC hemi 5-spd 82 Alfa Romeo GTV6 2.5L SOHC hemi V6 5-spd transaxle 75 Maserati Bora US spec 4.9L DOHC hemi V8 5-spd ZF 77 Maserati Khamsin Euro spec 4.9L DOHC hemi V8 5-spd ZF 07 Aston Martin DB9 6.0L DOHC V12 6spd transaxle
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Re: Dexcool and Mopars
[Re: Kudakidd]
#3203634
01/10/24 04:44 PM
01/10/24 04:44 PM
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Joined: Sep 2017
Posts: 288 NW Illinois
MoonshineMattK
enthusiast
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enthusiast
Joined: Sep 2017
Posts: 288
NW Illinois
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Is there any problems using Dexcool in our old Mopars? Any advantages or disadvantages? And how thoroughly does the Prestone have to be flushed before switching coolants? When Dexcool first came out it was a disaster. We routinely flushed it out and went back to green. And yes, it looked like mud. That said, I have not had issues for probably 10 years at least. More like 15+ Coolant drained from a car newer than 2010 looks brand new at any age or mileage. We have a drum of "Global" coolant for most vehicles and I've been switching my antique cars over to it. So far I've been extremely happy. No rust or corrosion. Costs me 1.40 per qt I do keep several jugs of coolant for VW and some Asian cars so the coolant keeps the same color as new. I am of the opinion all new extended life coolant is the same other than the dye but on a customers car better safe than sorry. And I don't want someone noticing a different color in the overflow.
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Re: Dexcool and Mopars
[Re: moparjim79]
#3203740
01/11/24 12:29 AM
01/11/24 12:29 AM
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Joined: Oct 2005
Posts: 4,954 WI
Dcuda69
master
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master
Joined: Oct 2005
Posts: 4,954
WI
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Dex cool is a very good coolant with regular maintenance, Yet advertised as extended use coolant.
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Re: Dexcool and Mopars
[Re: Dcuda69]
#3203749
01/11/24 12:48 AM
01/11/24 12:48 AM
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Joined: Feb 2003
Posts: 10,218 Someplace you aren't
SomeCarGuy
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 10,218
Someplace you aren't
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Just say no to deathcool. I dealt with two 3.8 gm cars in the family and it was nothing but trouble, even with flushes. Plugged up radiator cores like a pack of gummy bears was dropped in the tank. Saw the junk come directly out of one core and it stayed clear for about a winter before it plugged again. I believe the trans failed in one car from it running warm. Despite flushing throughly. Another northstar in the family failed like it was designed to before the plugging got bad enough to leave you cold in January.
No chance I’d run that bs in anything.
I want my fair share
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Re: Dexcool and Mopars
[Re: 67SATisfaction]
#3203761
01/11/24 06:09 AM
01/11/24 06:09 AM
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Joined: Jan 2006
Posts: 8,162 USA
360view
Moparts resident spammer
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Moparts resident spammer
Joined: Jan 2006
Posts: 8,162
USA
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from antifreeze wiki
Organic acid technology[edit] Most modern cars are built with organic acid technology (OAT) antifreeze (e.g., DEX-COOL[23]), or with a hybrid organic acid technology (HOAT) formulation (e.g., Zerex G-05),[24] both of which are claimed to have an extended service life of five years or 240,000 km (150,000 mi).
DEX-COOL specifically has caused controversy. Litigation has linked it with intake manifold gasket failures in General Motors' (GM's) 3.1L and 3.4L engines, and with other failures in 3.8L and 4.3L engines. One of the anti-corrosion components presented as sodium or potassium 2-ethylhexanoate and ethylhexanoic acid is incompatible with nylon 6,6 and silicone rubber, and is a known plasticizer. Class action lawsuits were registered in several states of the US, and in Canada,[25] to address some of these claims. The first of these to reach a decision was in Missouri, where a settlement was announced early in December 2007.[26] Late in March 2008, GM agreed to compensate complainants in the remaining 49 states.[27] GM (Motors Liquidation Company) filed for bankruptcy in 2009, which tied up the outstanding claims until a court determines who gets paid.[28]
According to the DEX-COOL manufacturer, "mixing a 'green' [non-OAT] coolant with DEX-COOL reduces the batch's change interval to 2 years or 30,000 miles, but will otherwise cause no damage to the engine".[29] DEX-COOL antifreeze uses two inhibitors: sebacate and 2-EHA (2-ethylhexanoic acid), the latter which works well with the hard water found in the United States, but is a plasticizer that can cause gaskets to leak.[21]
According to internal GM documents,[29] the ultimate culprit appears to be operating vehicles for long periods of time with low coolant levels. The low coolant is caused by pressure caps that fail in the open position. (The new caps and recovery bottles were introduced at the same time as DEX-COOL). This exposes hot engine components to air and vapors, causing corrosion and contamination of the coolant with iron oxide particles, which in turn can aggravate the pressure cap problem as contamination holds the caps open permanently.[29]
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Re: Dexcool and Mopars
[Re: moparmandc]
#3203776
01/11/24 09:37 AM
01/11/24 09:37 AM
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Joined: Jan 2003
Posts: 21,076 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,076
Niles , Ohio
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Unless they changed it it is the worst crap ever made.Cant say how many car we had here that it sludged up in.Havent worked on GMs that used it in like 10 years.Just buy the regular coolant that can be used in anything.
Chrysler Firepower
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