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Anti-freeze ???

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Old Sep 15, 2009 | 10:18 AM
  #1  
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Default Anti-freeze ???

Hi everyone I was just wondering is there a certain kind of anti-freeze that I should be using in my '93 LT1 corvette ? I find myself have to add a water mix with anti-freeze about every other week or so , to the over flow ! Just anted to make sure I'm using the right kind !! Thanks alot , ~Sunshine~
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Old Sep 15, 2009 | 12:07 PM
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I use the green stuff in my 87. Be sure to buy straight antifreeze and mix it yourself as with the 50/50 mix stuff you're paying for water.
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Old Sep 15, 2009 | 12:30 PM
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Originally Posted by Mr. Dude
I use the green stuff in my 87. Be sure to buy straight antifreeze and mix it yourself as with the 50/50 mix stuff you're paying for water.
I think that one is 20/80 (20% anti-freeze).
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Old Sep 15, 2009 | 12:41 PM
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Default Only use green stuff

On 93 only use the green stuff. Dex Cool (yellow) will not mix with "green stuff" and clog the system. Prior owner on my 93 tried to mix yellow and green. It took many flushes to clean entire cooling system get rid of the mess it caused. I use a concentrate and 50/50 mix with water. Good luck.
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Old Sep 15, 2009 | 07:19 PM
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Thanks guy's !! I'm glad I asked !! Nothin' but the green stuff for me !! LOL ! 50/50 that is !! Thanks again !!
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Old Sep 15, 2009 | 09:12 PM
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Default Prestone for sure!

Use Prestone antifreeze/coolant and mix it 50/50 with distilled water. Believe me the distilled water will make a difference in how clean the coolant stays. Also as was already mentioned, never buy a 50/50 mix as you are paying for half water instead of coolant.
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Old Sep 15, 2009 | 09:43 PM
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I just used prestones any color and it's green but works with all anti freeze.
I use a 75 25 mix.More anti freeze the better.
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Old Sep 15, 2009 | 11:22 PM
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Originally Posted by 93LT1Sunshine
Hi everyone I was just wondering is there a certain kind of anti-freeze that I should be using in my '93 LT1 corvette ? I find myself have to add a water mix with anti-freeze about every other week or so , to the over flow !
Have you checked your cooling system? You shouldn't have to add to it "about every other week or so".
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Old Sep 15, 2009 | 11:57 PM
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Originally Posted by tblt44
I just used prestones any color and it's green but works with all anti freeze.
I use a 75 25 mix.More anti freeze the better.
I use Prestone "any color" in my 95. This comes in a Yellow jug and the fluid is green in color.

If I remember correctly the GM "dex cool" is ORANGE in color and comes in a jug with an orange cap.

PS as jrzvette points out you should not have to be adding fluid to your system every other week ... get your system checked out.

Last edited by Mr. Peabody; Sep 16, 2009 at 12:00 AM.
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Old Sep 29, 2009 | 09:11 AM
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Originally Posted by jrzvette
Have you checked your cooling system? You shouldn't have to add to it "about every other week or so".
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Old Sep 30, 2009 | 06:33 AM
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Originally Posted by jrzvette
Have you checked your cooling system? You shouldn't have to add to it "about every other week or so".


You need to check it out. Something is wrong. Find out before you are out a ton of money.
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Old Sep 30, 2009 | 12:00 PM
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Originally Posted by tblt44
I just used prestones any color and it's green but works with all anti freeze.
I use a 75 25 mix.More anti freeze the better.
1) Do not mix the green antifreeze with the orange Dex Cool. They are not compatible.

2) More antifreeze is not better. Water transfers heat better than antifreeze. A 50-50 mix generally gives the best combination of heat transfer, low temperature protection, and boil over protection.

Steve
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Old Sep 30, 2009 | 12:34 PM
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More is better if you live in Alaska
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Old Oct 6, 2009 | 02:25 PM
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Originally Posted by tblt44
I just used prestones any color and it's green but works with all anti freeze.
I use a 75 25 mix.More anti freeze the better.
Anything over a 50/50 mix is a waste of your money and lowers the cooling ability of your system.
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Old Oct 6, 2009 | 02:33 PM
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Originally Posted by 93LT1Sunshine
Hi everyone I was just wondering is there a certain kind of anti-freeze that I should be using in my '93 LT1 corvette ? I find myself have to add a water mix with anti-freeze about every other week or so , to the over flow ! Just anted to make sure I'm using the right kind !! Thanks alot , ~Sunshine~
What ever brand and type you choose, make sure NOT to get any on your Opti or it might die.
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