Has anyone eperienced problems with DexCool coolant ? I have a 2004
Chev. P/U and was wondering if I should remove this product from my
cooling system. I talked to the dealership, they say they know of no
problem, but when I do an internet search, I see all kinds of issues.
The only problem in removing it is that it would void part of your warranty.
If you look at those internet sites you will see the problem pertains to
some vehicles for just a few years when DexCool was first used.
Just keep the reservoir full and don't mix in other coolants.
THe problem is, basically, once DexCool, short of a complete tear-down
and rebuild, you're stuck with the crap. The engine, btw, will happily
accept the older stuff, though, when the time comes. Bad, bad things
happen if even a little of the two get mixed.
>>>> Now that the warm weather is here, you could flush out the
DexCool, go with plain water, flush a couple more times, than your sure
to have purged the Dex Cool. Than refill with " Green " and change it
every year or two. Giving the baloney about DexCool, the dealer
shouldn't mind, save receipts from Anti Freeze purchases.
I've a '99 Chevy K1500 with a 5.7 liter. I change the DexCool when specified
in the owners manual. I keep the radiator overflow tank filled and replace
the radiator cap when I change the DexCool, never had a problem yet.
If you replace the radiator cap with a Stant and keep the resevoir
filled above the HOT mark, you should have no problems. The primary
cause of DxCool problems is air in the system (and another is
contaminants in the water).
There are two classes of pedestrians in these days of reckless motor
traffic - the quick and the dead.
~ Lord Dewar 1933 ~
Climbing into a hot car is like buckling on a pistol. It is the great
equalizer. ~ Henry G. Felsen 1964 ~
Time and time again this comes up here.
The reason any coolant does "damage" is when its left in the system too long
it becomes acidic form electrolysis.
Differing metals in your engine cause this. Follow the proper flush
intervals and you will have minimal issues from dexcool or green antifreeze.
Dexcool is fine. It's a lot easier on waterpump seals than the green
stuff and will last about 5 years as opposed to two or three. The
downside of Dexcool is that you need to make sure the system is kept
full. That being said, unless you have a leak there is no reason for
the system not to be full. If your system is not full, find and fix
There is a lot of noise on the net about Dexcool. It is largely
crapola perpetuated by the uninformed.
I believe that I would have to agree with you on that. But GM really never
tried to inform the public as they did their own service personnel. After
all it has a completely different effect when compared to than the green
stuff when a leak occurs in the system.
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