Bill Putney wrote:
> Ted Mittelstaedt wrote:
>
>> ...However, these days the original HOAT coolants have been
>> reformulated with proprietary trade-secret chemicals to produce the newer
>> "universal style" HOAT. In other words, the Zerex G-05 coolant of 6
>> years
>> ago is not the same chemical as the Zerex G-05 of today that is marked
>> "Universal" There simply isn't enough ancedotal evidence that today's
>> Universal
>> HOAT (G-05 or equivalent) is bad in older cars because these haven't
>> been on the market long enough. So in answer to your question - nobody
>> really knows. Zerex almost certainly will tell you that their Universal
>> G-05 will be safe. But how long has it been on the market in it's
>> current
>> formulation?...
>
> Ted,
> I'm a big proponent of HOAT/G-05. Where did you learn that HOAT has
> been reformulated? Can you provide links to any articles?
>
> Also I have not seen any Zerex references to it being universal - that
> doesn't mean there aren't any - I just haven't seen any. On this page of
> their site: http://www.valvoline.com/zerex/automaker.asp
> they say "There is no 'one size fits all' chemistry that is approved for
> use in all vehicles. Don't take chances—use Zerex AutoMaker Approved
> Chemistry" - that's above the pictures of their 3 antifreeze products -
> traditional green, G-05 and DexCool™. And on this page:
> http://www.valvoline.com/pages/produ...asp?product=10
> I don't see any suggestion of universal use, though I did put it in my
> wife's '99 Buick about 3 years ago with no ill effects so far.
>
> On this page:
> http://www.valvoline.com/carcare/art...cid=2&scccid=1
>
>
> "Perhaps one of the most important aspects to look for when next
> shopping for antifreeze/coolant is approval from the maker of your car.
> Currently, there is no 'one size fits all' solution that is approved for
> use in newer cars. And filling your cooling system with the wrong
> solution may result in serious adverse effects.
>
> "Products marked APPROVED have been subjected to years of field and lab
> testing by your car's manufacturer and are certain to provide the best
> performance and protection. Also, use of these products will ensure your
> car's warranty remains intact. The same cannot be said for using
> non-approved products, which may end up causing more problems than they
> solve. Some quality antifreeze/coolant producers even print the makes
> that have approved their products for use. This is always the best way
> to go."

Yo - Ted - you there?

Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
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