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Old 07-21-2005, 06:15 PM   #1
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Default Question on Coolant

Some say the coolant that'* recommended for our cars is no good and ends up as sludge. Is this the general consensus? What'* the good stuff? Should I take what'* in the car now out and put something else back in before it turns to sludge? Anybody have any other thoughts or opinions on this subject? I'm at 24,000 mi.
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Old 07-22-2005, 12:22 AM   #2
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The Dexcool shouldn't be a problem sludging up. If you do coolant flushes every couple years, or so many miles, it shoulld be fine.
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Old 07-22-2005, 03:19 AM   #3
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I personally do not like the DexCool. I've switched to the new Prestone anti-freeze that is compatible with all types.
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Old 07-22-2005, 09:47 AM   #4
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I changed mine last year after 4 1/2 years of service and there wasn't a hint of sludge in it. I stayed with the Dex Cool with the Bonneville as well as our Caravan.
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Old 07-22-2005, 01:24 PM   #5
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Default Re: Question on Coolant

Quote:
Originally Posted by hvactech
Some say the coolant that'* recommended for our cars is no good and ends up as sludge. Is this the general consensus? What'* the good stuff? Should I take what'* in the car now out and put something else back in before it turns to sludge? Anybody have any other thoughts or opinions on this subject? I'm at 24,000 mi.
60k on the car, checked dexcool and no problem with the sludge at all..
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Old 07-22-2005, 02:14 PM   #6
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Ok...thanks for the feedback
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Old 07-22-2005, 06:23 PM   #7
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Prestone is good stuff, use it in my GP and Impala and used in my ol 77 Bonneville never had one problem! Haven't tried in any in my new baby yet tho (SLE)! Good luck finding a good coolant!
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Old 07-23-2005, 02:48 AM   #8
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Default Dexcool

My Bonneville is the 2nd car I have owned that used Dexcool.I had a 97 Jimmy and I had so many problems with the dexcool..I had to replace the water pump,Intake manifold gaskets and had to have numerous acid flushes.It also had a lot to do with the radiator cap too..The rad caps that GM used were losing pressure.But to get back on the subject,they improved dexcool since then and from what I see in my Bonnie there is no sign of sludge what so ever..(it is a 2001 and it has over 100k miles..The previous owner took very good care of it.)You should have nothing to worry about.
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