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| | | GM Dexcool Coolant / Antifreeze | |
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AA Administrator

Name: Aaron Age: 32 Location: C-bus, Ohio Joined: 2007-01-14 Post Count: 9474 Contribution: 3477 Integrity: 39
 | Subject: Re: GM Dexcool Coolant / Antifreeze Fri Jul 31, 2009 7:27 pm | |
| I think Autozone reclaims both coolant and oil, but not mixed together. _________________  |
|  | | deekster_caddy Addict
Name: Derek Age: 37 Location: Reading, MA Joined: 2007-02-01 Post Count: 4446 Contribution: 3570 Integrity: 28
 | Subject: Re: GM Dexcool Coolant / Antifreeze Fri Jul 31, 2009 9:07 pm | |
| | Jack the R wrote: | | What do you guys do with your old fluid? |
I have a 55 gallon drum I pour it into. When it gets full I call a recycler to come take it. Last time it cost $60 to have it emptied. I fill it every 5 years or so..._________________ '98 Buick Riviera; Gen V 3.25 pulley, N*, VS Cam, 180 stat, Custom PCM (Powrtuner), headers & HF cat , 42.5 lb inj. Grant-built/PRJ/Thrasher trans 3.29 gears, 7/8 chain, zzp hardened IS  |
|  | | Jack the R Addict

Joined: 2007-01-17 Post Count: 3824 Contribution: 2556 Integrity: 22
 | Subject: Re: GM Dexcool Coolant / Antifreeze Fri Jul 31, 2009 10:28 pm | |
| Wish I had an autozone closer . . . May give them a try anyway. Got too much of this stuff sitting around in old buckets. |
|  | | albertj Addict
Name: Location: Finger Lakes of New York State Joined: 2007-05-31 Post Count: 2052 Contribution: 2496 Integrity: 29
 | Subject: Re: GM Dexcool Coolant / Antifreeze Fri Jul 31, 2009 10:33 pm | |
| I give my used oil to a friend who runs a car repair shop, when I do my own oil changes. He heats his shop with used oil. I put it into detergent bottles, which I find will cap tight enough so they don't leak on the way to his shop, unlike other bottles I have tried. I don't have any used antifreeze around ATM. Albertj _________________ 1998 with all fac. opts. (exc. CD changer and subwoofer); 209,000 miles. Mods: KYB front struts, extra noise barriers, fire extinguisher, Magnecor 8mm plug wires, 4-note horn, custom-made stainless exhaust.
Avatar is missing.
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|  | | Chicken Addict

Name: Mark Age: 43 Location: Montana Joined: 2008-06-13 Post Count: 1298 Contribution: 666 Integrity: 4
 | Subject: Re: GM Dexcool Coolant / Antifreeze Mon Aug 03, 2009 4:31 pm | |
| I pour mine in little saucers and feed the neighborhood cats.... _________________ '96 Riv, S/C - 120,790 miles AL104's, 8mm Accel 9046 Wire Set, Intense 180* Thermostat, Intense 3.5" FWI w/ 9" K&N Filter, Intense MPS w/ ZZP 3.5", Aeroforce Interceptor Scan Gauge, AdjustableTransmission Modulator Valve, 245/35R20 wheels, DHP 1.5
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|  | | AA Administrator

Name: Aaron Age: 32 Location: C-bus, Ohio Joined: 2007-01-14 Post Count: 9474 Contribution: 3477 Integrity: 39
 | Subject: Re: GM Dexcool Coolant / Antifreeze Mon Aug 03, 2009 7:58 pm | |
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|  | | Eldo Member

Name: Mark Location: The "other" side of the Golden Gate. Joined: 2009-04-10 Post Count: 423 Contribution: 848 Integrity: 25
 | Subject: Re: GM Dexcool Coolant / Antifreeze Tue Aug 04, 2009 4:50 am | |
| | Rickw wrote: | I do the politically incorrect thing to do. I live in a heavily wooded area and have my own little spot for coolant. Hell, It wasn't THAT long ago that is was considered OK to let it go down the drain in the street. |
Dumping in the ground is going to keep it concentrated, and possibly contaminate ground water. I think I'd rather pour it down the regular drain and let it go thru the sewer treatement plant and get nice & diluted... Besides, how can you 'contaminate' sewage?
Or, go with the other Mark's idea and feed the kitties... . _________________ 97 Riviera L67 - Desert Sandstone - Gutted AB Lid, Kool Blue AF, 180* SuperStat, Hogan 3" DP, ZZP 3.6" MPS; Sensa-Trac struts, Rockford-Fosgate 6x9's; Annoyance-Fixes: Express-Down delete, Full-time juice to Power Port, BRP-power to Glovebox lite, Brake-to-Shift delete, Console-compartment lite, Seat/Mirror Memory in any gear.
69 Wildcat Convertible, 430" QJet - Burgundy/Black - P/Win, P/Seat, P/Ant, Tilt, Cruise, Remote Trunk, Rallyes, AM/FM Mono!
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|  | | Rickw Addict
Name: Rick Location: Lancaster, MA Joined: 2008-09-13 Post Count: 2695 Contribution: 3725 Integrity: 31
 | Subject: Re: GM Dexcool Coolant / Antifreeze Tue Aug 04, 2009 5:25 am | |
| I've been waiting for someone to call me out on this. I actually have a shop available to me at the end of my road. They let me either bring my fluids to them and dump there, or i can change oil or coolant right there and be done with it. Nice having an old neighborhood shop in a rural area right down the street, it's a place where farmers and gearheads alike can go to get work done or schedule a little lift time now and then. BTW, how have you been Eldo, haven't heard from you in a while. Hope everything is OK. _________________ 98 Riv, 102K Miles, EBC, LS1 Ft.Calipers, STB, Addco Rr Sway Bar, 180* stat., SSAC Headers, HF Cat, 1.9's, 105# springs, MPS 3.4, DHP tuned by the Deekster.
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|  | | Eldo Member

Name: Mark Location: The "other" side of the Golden Gate. Joined: 2009-04-10 Post Count: 423 Contribution: 848 Integrity: 25
 | Subject: Re: GM Dexcool Coolant / Antifreeze Tue Aug 04, 2009 12:18 pm | |
| Things are OK, but you're right - I did drop off the planet for a while. I've had a bunch of work, appointments and preparations to get out of the way to get ready for rotator cuff surgery. Now that I've dropped back from Dilaudid to Percocet, I'm starting to catch up on all the backed up email and other Web stuff. Thanks for asking, Rick. PS - And once upon a time, when leaving our log cabin at Tahoe in the winter, we had to pour anti-freeze in the toilet bowls... which got flushed each time we went back up.  . _________________ 97 Riviera L67 - Desert Sandstone - Gutted AB Lid, Kool Blue AF, 180* SuperStat, Hogan 3" DP, ZZP 3.6" MPS; Sensa-Trac struts, Rockford-Fosgate 6x9's; Annoyance-Fixes: Express-Down delete, Full-time juice to Power Port, BRP-power to Glovebox lite, Brake-to-Shift delete, Console-compartment lite, Seat/Mirror Memory in any gear.
69 Wildcat Convertible, 430" QJet - Burgundy/Black - P/Win, P/Seat, P/Ant, Tilt, Cruise, Remote Trunk, Rallyes, AM/FM Mono!
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|  | | albertj Addict
Name: Location: Finger Lakes of New York State Joined: 2007-05-31 Post Count: 2052 Contribution: 2496 Integrity: 29
 | Subject: Re: GM Dexcool Coolant / Antifreeze Mon Aug 17, 2009 10:05 pm | |
| | Rickw wrote: | I do the politically incorrect thing to do. I live in a heavily wooded area and have my own little spot for coolant. Hell, It wasn't THAT long ago that is was considered OK to let it go down the drain in the street. |
Please don't take this personally...
Ethylene glycol is toxic to aquatic and land based life forms, and it does not take much. Admittedly, it will eventually break down into water and carbon dioxide.
However, used antifreeze contains more than just ethylene glycol and water. It can become contaminated with metals, oils and fuel in its use - these add to the toxicity and increase the environmental harm.
That said, odds are that if the antifreeze dumped into the woods does not hit the groundwater, it breaks down and becomes relatively harmless except for the additives and contaminants. However if it does hit the groundwater, one gallon of it will toxify (make unsafe to drink) up to 10,000 gallons of water.
To the best of my knowledge, there are no federal requirements for managing/disposing of used antifreeze, although most states regulate it. Which is no surprise because (a) it has the potential to be a hazardous waste due to its potentially high pH or its potential to have a high lead content (b) companies selling equipment or services for recycling it have taken the time to 'educate' state legislatures about it. Companies get around a buck a gallon to dispose of antifreeze. Get it? Point is that apparently in and of itself the antifreeze is not the regulated waste, rather it is the used antifreeze's content of copper, lead and such accumulated from engine cooling system wear and fuel or oil accumulated from combustion leaks that makes it hazardous.
I do not know whether antifreeze inhibits the biological activity of septic systems, and I am not interested in running a personal experiment to find out... but I hope my comment was informative and leads us all to make appropriate decisions about our used antifreeze.
Albertj _________________ 1998 with all fac. opts. (exc. CD changer and subwoofer); 209,000 miles. Mods: KYB front struts, extra noise barriers, fire extinguisher, Magnecor 8mm plug wires, 4-note horn, custom-made stainless exhaust.
Avatar is missing.
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|  | | Eldo Member

Name: Mark Location: The "other" side of the Golden Gate. Joined: 2009-04-10 Post Count: 423 Contribution: 848 Integrity: 25
 | Subject: Re: GM Dexcool Coolant / Antifreeze Mon Aug 17, 2009 11:15 pm | |
| Al, I think he admitted that he really was having it handled properly when he said "I actually have a shop available to me at the end of my road. They let me either bring my fluids to them and dump there, or i can change oil or coolant right there and be done with it..." Except for getting rid of those damn cats... _________________ 97 Riviera L67 - Desert Sandstone - Gutted AB Lid, Kool Blue AF, 180* SuperStat, Hogan 3" DP, ZZP 3.6" MPS; Sensa-Trac struts, Rockford-Fosgate 6x9's; Annoyance-Fixes: Express-Down delete, Full-time juice to Power Port, BRP-power to Glovebox lite, Brake-to-Shift delete, Console-compartment lite, Seat/Mirror Memory in any gear.
69 Wildcat Convertible, 430" QJet - Burgundy/Black - P/Win, P/Seat, P/Ant, Tilt, Cruise, Remote Trunk, Rallyes, AM/FM Mono!
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|  | | BKRIV Member

Name: Bill Location: Sandusky Ohio Joined: 2007-11-23 Post Count: 128 Contribution: 826 Integrity: 3
 | Subject: Re: GM Dexcool Coolant / Antifreeze Sun Nov 01, 2009 9:53 pm | |
| I've read through this thread but still have a few questions: I thought Dexcool was pink and regular antifreeze green, someone may have topped my system off and mixed the two because it's brown now and I have to do something before winter. I'm going to flush and re-fill with Regular (green) antifreeze since it's something I prefer to do every couple years and the only good thing I've heard about the dexcool is that it does'nt kill the neighborhood cats. Will I have to change my hoses too? What problems might I encounter by switching from pink to green. I'm thinking GM pushes the pink because they probably go through hundreds of thousands of gallons a year and care more about their EPA status than they do the consumer...could be wrong. |
|  | | Rickw Addict
Name: Rick Location: Lancaster, MA Joined: 2008-09-13 Post Count: 2695 Contribution: 3725 Integrity: 31
 | Subject: Re: GM Dexcool Coolant / Antifreeze Sun Nov 01, 2009 10:30 pm | |
| You just need to flush it out good, try using some Prestone cooling system flush or any other brand. Point is flush it until only clear water comes out, remove the overflow tank from the fender well and give that a good cleaning as well. It is only held on by a few screws. Check the underside of your radiator cap too, if it is brown buy a new one. Pull the thermostat and run the car with the flushing solution without the thermostat in the engine for a while, until it gets warm - it won't get up to normal temps but that's OK. Drain all the water and flushing solution out, put in a new thermostat and seal, run it with straight garden hose water for a while and drain that out then add 50/50 of green anti-freeze (use distilled water to mix your anti-freeze) check all your hoses for dry rot externally. No need to replace hoses just because they had Dex-Cool in them. Install new cap, let it run until warm and bleed all air out of the system using the bleed valve in the thermostat housing, if you can get the front of the car up an incline or on ramps it makes it easier to bleed. Otherwise do the best you can on flat ground and re-bleed in a day or two to make sure there is no air left in the system. You will have the cleanest cooling system in the neighborhood, but you need to after someone has mixed green and orange to make pink / brown. You'll be glad you did it the correct way when your done. I do this same procedure to my car every 2 years because I'm anal, but i think it's worth it. If your hoses are original consider replacing them also for preventive measure. There is no reason why you should be stuck on the side of the road due to a blown radiator or heater hose. Good Luck _________________ 98 Riv, 102K Miles, EBC, LS1 Ft.Calipers, STB, Addco Rr Sway Bar, 180* stat., SSAC Headers, HF Cat, 1.9's, 105# springs, MPS 3.4, DHP tuned by the Deekster.
Last edited by Rickw on Sun Nov 01, 2009 10:39 pm; edited 1 time in total |
|  | | albertj Addict
Name: Location: Finger Lakes of New York State Joined: 2007-05-31 Post Count: 2052 Contribution: 2496 Integrity: 29
 | Subject: Re: GM Dexcool Coolant / Antifreeze Sun Nov 01, 2009 10:38 pm | |
| | Eldo wrote: | Al, I think he admitted that he really was having it handled properly when he said "I actually have a shop available to me at the end of my road. They let me either bring my fluids to them and dump there, or i can change oil or coolant right there and be done with it..."
Except for getting rid of those damn cats... |
I agre - also will reiterate that under many conditions (including dumping on soil) the stuff breaks down pretty harmlessly anyway, except for if there are contaminants in it.
Albertj _________________ 1998 with all fac. opts. (exc. CD changer and subwoofer); 209,000 miles. Mods: KYB front struts, extra noise barriers, fire extinguisher, Magnecor 8mm plug wires, 4-note horn, custom-made stainless exhaust.
Avatar is missing.
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|  | | deekster_caddy Addict
Name: Derek Age: 37 Location: Reading, MA Joined: 2007-02-01 Post Count: 4446 Contribution: 3570 Integrity: 28
 | Subject: Re: GM Dexcool Coolant / Antifreeze Mon Nov 02, 2009 6:23 am | |
| | BKRIV wrote: | I've read through this thread but still have a few questions:
I thought Dexcool was pink and regular antifreeze green, someone may have topped my system off and mixed the two because it's brown now and I have to do something before winter. I'm going to flush and re-fill with Regular (green) antifreeze since it's something I prefer to do every couple years and the only good thing I've heard about the dexcool is that it does'nt kill the neighborhood cats. Will I have to change my hoses too? What problems might I encounter by switching from pink to green. I'm thinking GM pushes the pink because they probably go through hundreds of thousands of gallons a year and care more about their EPA status than they do the consumer...could be wrong. |
I have seen brown (muddy-ish) coolant because nobody ever changed it. It might just need to be flushed. You should not need to replace any parts (unless they are worn and cracked hoses etc). It's about the age when the heater hoses and OEM rad hoses will start to let go, so it wouldn't hurt to do hoses at the same time._________________ '98 Buick Riviera; Gen V 3.25 pulley, N*, VS Cam, 180 stat, Custom PCM (Powrtuner), headers & HF cat , 42.5 lb inj. Grant-built/PRJ/Thrasher trans 3.29 gears, 7/8 chain, zzp hardened IS  |
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