Coolant Disappearing? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-31-2006, 10:54 PM   #11
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Dex says Dex is good for lots of cars too. My guess is your LIM gaskets have bitten the dust around the coolant ports.
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Old 12-31-2006, 11:08 PM   #12
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DO correct me if I'm wrong, but WillWren has been recommending people replace their OEM Havoline Dexcool with DEX COMPATIBLE Prestone.

Also. I didn't choose the coolant. It was recommended to me at Advance Auto Parts because it protects the cooling system better than other coolants.

And I will smell the coolant tomorrow. But I don't think....oh crap who knows, but if I've cooked my LIM gaskets, I don't have the time, money or tools to pull off the top end and be replacing gaskets.
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Old 12-31-2006, 11:13 PM   #13
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Yourt car doesn't have DEX OEM, that'* 96+.

You got regular green coolant.
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Old 12-31-2006, 11:18 PM   #14
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Quote:
Originally Posted by Damemorder
Yourt car doesn't have DEX OEM, that'* 96+.

You got regular green coolant.
I KNOW that, but why would it be recommended to replace DEX if it has the same effects AS DEX.

Reguardless of outcome of this coolant debate....

What should I do other than smell the coolant and confirm my worst nightmare?
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Old 01-01-2007, 12:08 AM   #15
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Don't worry too much if you haven't noticed excessive steam coming from the exhaust or milky oil. I doubt if having "Dex-Cool" in the coolant for 16 months has anything to do with your current problem - just wondered why you did it.

I don't think any of us really know what'* in the" Prestone Dex-Cool Approved". The gearheads were debating this on Friday. I tried calling Prestone on Friday but called too late. I'll try again on Tuesday.

Edit - You should get a pressure test done.
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Old 01-01-2007, 12:13 AM   #16
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Haha, well I have a TON of steam coming from the exhaust. Its winter remember? If there WAS abnormal steam coming out of the exhaust pipe, I wouldn't be able to tell ANYWAYS.

But anyways. I know about the debate, this is why I finally decided to post about this problem. Is to see if there was any further development in this whole Dex Compatible stuff.

So thing is, I really need to know if I should get that stuff out of there!
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Old 01-01-2007, 12:17 AM   #17
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Another thing to check is the upper radiator hose. I found that mine is leaking right by the radiator fitting. It has a small crack in the tank by the hose. Never see a puddle because it evaporates before it falls. Only seeps when system is under pressure. I only noticed it when I noticed a slow loss. Only fix is new radiator or have it braized (as long as it is the copper tank).
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Old 01-01-2007, 12:20 AM   #18
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If your getting steam after the exhaust system has a chance to get warmed up then I'd call that abnormal.
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Old 01-01-2007, 12:22 AM   #19
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Well when I bought the car....I had a leak from the upper rad hose from the radiator fitting area...and also one from the rad itself. I loosened the clamp, moved the hose further up on the fitting and retightened the clamp and no leak from there anymore. ALSO, now that I think of it, it IS possible that is has evaporated, but the coolant I have leaves an oily stain where it evaporates, so I'm not too sure what to believe, but I'm really hoping that I didn't kill my LIM with this possibly corrosive fluid.
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Old 01-01-2007, 12:23 AM   #20
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Quote:
Originally Posted by Technical Ted
If your getting steam after the exhaust system has a chance to get warmed up then I'd call that abnormal.
I am getting steam just like everyone else has been getting as they drive around.
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