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Does antifreeze have a shelf life?

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Old 07-22-2012, 01:33 AM   #1
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Default Does antifreeze have a shelf life?

I opened up my overflow and to me the antifreeze smelled old. Not that sweet smell (car has 98k but maybe I am crazy? I thought it would be a good time to flush the system. What is the easiest/best way to do this? I assume it is the regular green antifreeze, how many gallons do I need. I found an unopened one to start but it is 10+ years old. What is my best plan. The car never goes above 210. Thanks. Brian.
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Old 07-22-2012, 02:06 AM   #2
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I bought a Peak flush n fill kit from auto zone, has little water hose attachment and a few other things.
Idk how well it works, but going to find out when i have a chance to do it. Just have to decide what i'm going to do about catching all the fluids.

As for your amount question..

Capacity is as follows:
- 3800 V6 with manual transmission = 11.6 quarts
- 3800 V6 with automatic transmission = 11.4 quarts
- 5.7L V8 with manual transmission = 11.9 quarts
- 5.7L V8 with automatic transmission = 11.8 quarts
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Old 07-22-2012, 02:07 AM   #3
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Oh, and honestly I would just buy fresh coolant "just to be safe"
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Old 07-22-2012, 08:16 AM   #4
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Fresh Dexcool. It isn't the green stuff but that's your choice. I keep mine the way it came from GM.
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Old 07-22-2012, 11:38 AM   #5
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Quote:
Originally Posted by colinpd137 View Post
I bought a Peak flush n fill kit from auto zone, has little water hose attachment and a few other things.
Idk how well it works, but going to find out when i have a chance to do it. Just have to decide what i'm going to do about catching all the fluids.

As for your amount question..

Capacity is as follows:
- 3800 V6 with manual transmission = 11.6 quarts
- 3800 V6 with automatic transmission = 11.4 quarts
- 5.7L V8 with manual transmission = 11.9 quarts
- 5.7L V8 with automatic transmission = 11.8 quarts
Good idea, that is a dam good question about catching the fluids. I don't want to flood my friends mantion where the car stays. I will look maybe the kit comes with an adpater?
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Old 07-22-2012, 11:45 AM   #6
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Quote:
Originally Posted by colinpd137 View Post
Oh, and honestly I would just buy fresh coolant "just to be safe"
Fresh Dexcool. It isn't the green stuff but that's your choice. I keep mine the way it came from GM.

Perfect, two gallons & is it premixed?
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Old 07-22-2012, 11:47 AM   #7
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Originally Posted by NC01TA View Post
Fresh Dexcool. It isn't the green stuff but that's your choice. I keep mine the way it came from GM.
Nice monte, my buddy has a black/burg gut non aerocoupe w/ 40k. Did you have any factory paint problems?
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Old 07-23-2012, 09:21 AM   #8
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Originally Posted by Carguy8888 View Post
Nice monte, my buddy has a black/burg gut non aerocoupe w/ 40k. Did you have any factory paint problems?
Thank you! The original owner did have issues almost immediately back in '87. It was very common. The dealer re-painted the problem areas, mostly the roof and trunk. It has held up fine over the next 25 years. Here's a picture for you that was just taken on the Tail of the Dragon this past week (just click on it to enlarge).
Attachment 364944

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Old 07-24-2012, 08:24 AM   #9
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Nice car, my friends is black & GM repainted the tops too. My other friend had a burgandy no aero but it is long gone. They would be more amazing w/ a 350 or 383. Lol.
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