Dexcool coolant warning
 

After learning that silicates (powdered quartz) in coolant kill Honda bike
waterpumps, I have been running Dexcool in all my vehicles, not wanting to
spend $30 for Hondaline pre-mix once a year.
I didn't think too much about it when my VW diesel blew a headgasket last
fall with less that .0015 In. warpage. I have ben running Dexcool in my
Goldwing for 3 years, and it blew a headgasket last month. I found less than
..001 In. warpage and the gaskets where they were free-standing in coolant
had all the material either gone or blistered up badly. A short Google turns
out that lots of people have had similar problems.
I changed the coolant in the other 6 vehicles.

--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

Re: Dexcool coolant warning
 

Stupendous Man writes:

> silicates (powdered quartz)

So, professor, you're saying that this product contains powdered quartz?

Re: Dexcool coolant warning
 

Stupendous Man writes:

> silicates (powdered quartz)

So, professor, you're saying that this product contains powdered quartz?

Re: Dexcool coolant warning
 

Stupendous Man writes:

> silicates (powdered quartz)

So, professor, you're saying that this product contains powdered quartz?

Re: Dexcool coolant warning
 

Stupendous Man writes:

> silicates (powdered quartz)

So, professor, you're saying that this product contains powdered quartz?

Re: Dexcool coolant warning
 

> So, professor, you're saying that this product contains powdered quartz?

I'm not a Professor, just a Master Mechanic, so you may refer to me as
"Master". lol
"Normal" modern coolants contain silicates to scour the cooling system clean
of corrosion, and are fine for most engines. It's really tough on pre-1930s
packing gland style pumps. Some of the new types of coolant are free of
silicates.
A coolant that actually eats the engine or gaskets through chemical action
or electrolysis is kinda bad.
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

Re: Dexcool coolant warning
 

> So, professor, you're saying that this product contains powdered quartz?

I'm not a Professor, just a Master Mechanic, so you may refer to me as
"Master". lol
"Normal" modern coolants contain silicates to scour the cooling system clean
of corrosion, and are fine for most engines. It's really tough on pre-1930s
packing gland style pumps. Some of the new types of coolant are free of
silicates.
A coolant that actually eats the engine or gaskets through chemical action
or electrolysis is kinda bad.
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

Re: Dexcool coolant warning
 

> So, professor, you're saying that this product contains powdered quartz?

I'm not a Professor, just a Master Mechanic, so you may refer to me as
"Master". lol
"Normal" modern coolants contain silicates to scour the cooling system clean
of corrosion, and are fine for most engines. It's really tough on pre-1930s
packing gland style pumps. Some of the new types of coolant are free of
silicates.
A coolant that actually eats the engine or gaskets through chemical action
or electrolysis is kinda bad.
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

Re: Dexcool coolant warning
 

> So, professor, you're saying that this product contains powdered quartz?

I'm not a Professor, just a Master Mechanic, so you may refer to me as
"Master". lol
"Normal" modern coolants contain silicates to scour the cooling system clean
of corrosion, and are fine for most engines. It's really tough on pre-1930s
packing gland style pumps. Some of the new types of coolant are free of
silicates.
A coolant that actually eats the engine or gaskets through chemical action
or electrolysis is kinda bad.
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

Re: Dexcool coolant warning
 

I put Honda Genuine premix in both my Hondas, a 2002 CR-V and a 1999 Civic
HX. The Civic came new with green antifreeze, probably identical to the
Zerex Green that you can still get at Autozone, but I am not taking any
chances. Ten bucks a gallon for premix seems a lot, but that is enough to
change the entire cooling system in the Civic and a gallon and a half for
the CR-V. The bad part is I have to drive 135 miles one way to get it.

Afaik, Dexcool is for GM vehicles. "DEX-COOL is a registered trademark of
General Motors Corporation." What don't people understand about this?

The auto industry is seriously out of control on the coolant issue. I have
four different vehicles and this requires three different coolant types.
But if you mix and match or even try to save money by using a sensible
alternative you are looking for trouble.

Earle

"Stupendous Man" <spam@trap.com> wrote in message
news:5b246sF2r8tn7U1@mid.individual.net...
> After learning that silicates (powdered quartz) in coolant kill Honda bike
> waterpumps, I have been running Dexcool in all my vehicles, not wanting to
> spend $30 for Hondaline pre-mix once a year.
> I didn't think too much about it when my VW diesel blew a headgasket last
> fall with less that .0015 In. warpage. I have ben running Dexcool in my
> Goldwing for 3 years, and it blew a headgasket last month. I found less
than
> .001 In. warpage and the gaskets where they were free-standing in coolant
> had all the material either gone or blistered up badly. A short Google
turns
> out that lots of people have had similar problems.
> I changed the coolant in the other 6 vehicles.
>
> --
> Stupendous Man,
> Defender of Freedom, Advocate of Liberty
>
>