[V8] [SPAM][4.2] Re: Who's had a bad had gasket?

[Dave Saad]

My head gasket developed a coolant leak - not to the combustion  
chamber or oil jacket, just seeped down the side of the block.  I am  
pretty sure it was because I unknowingly used the Zerex version of  
dexcool for several years.  It seems that every GM car on the road  
with this stuff develops coolant leaks on gaskets.  I didn't know  
about this then.  I switched to the Zerex specified for my car (G-05)  
and so far so good.  I don't go with the Audi juice just because if I  
have a problem out on the road, I can always find the Zerex stuff.

I used the same Zerex in my explorer(s) and Audi 100 with no problems  
but who knows if they developed problems after I sold them.


The green is fine for iron motors but as pointed out, it is hard on  
aluminum and causes long term degradation.

Dave
On Apr 4, 2009, at 4:50 PM, 32VQUATTRO wrote:

> I respectfully disagree Cobram.  While I agree its ok to use none Audi
> antifreeze, it should be a silicate and phosphate free antifreeze.  
> There is
> a member on one of the other Audi forums with an AAN head that has  
> corroded
> water jackets, rendering the head useless due to the green stuff. With
> premium aftermarket antifreeze selling upwards of 13-14 dollars now,  
> I spend
> the little extra, and buy the o.e. g12 for $18 per gallon from Audi.  
> That's
> cheaper than the $12 per liter for Pentosin
>
> Allan
> ----- Original Message -----
> From: <cobram at juno.com>
> To: <toml99 at todomundo.com>
> Cc: <v8 at audifans.com>
> Sent: Saturday, April 04, 2009 3:03 AM
> Subject: Re: [V8] Who's had a bad had gasket?
>
>
>> Anything but the run of the mill green (blue or whatever), safe for
>> aluminum coolant is a waste of money.  This was beaten to death on  
>> the
>> main list a while back, with a resident industrial chemist  
>> explaining it.
>> I've been running the "evil green" Prestone in all my Audi's  
>> (including
>> 2 V8Q's) for over 2 decades now (starting with my '84 5KS and  
>> lesser '82
>> 5K before that), if something was going to happen, I figure it should
>> have by now.
>> Never had a head gasket problem on any of them.  Any engine that  
>> starts
>> blowing head gaskets en mass is a design, manufacture or material  
>> flaw,
>> IMHO.
>>
>> BCNU,
>> http://www.geocities.com/cobramsri/
>> "God's a kid with an ant farm. He's not planning anything."
>>
>> "toml99 at todomundo.com" <toml99 at todomundo.com> writes:
>>> Hey, was just thinking about stuff, and was wondering on a  
>>> percentage
>>>
>>> base, who's had a head gasket problem?.....Most steel block/aluminum
>>>
>>> head cars have issues around 150K, and was reading on the Saab site
>>>
>>> tonight that many are going to a phosphate-free type of coolant.
>>> Pearl car still has the green coolant in it(evil), and plan to fix
>>>
>>> that this weekend.  Don't hear of a lot of people complaining of
>>> head
>>> gasket issues with the v8....(good thing).  With a properly
>>> maintained car, who's had a head gasket issue?.....Just looking for
>>>
>>> another reason to validate our obsession.........Tom
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