Green 3 year anti-freeze only? 2000 GT

> i am wondering if anyone has asked their service department whether
> they have changed this requirement since the owners manual was printed
> for my 2000 GT.
> my book says use only green 3 year anti freeze.
> does anyone know why or what is in the 5 year that could hurt the 2000
> GT?

It seemed to be all I could buy, so that's what I got... in my '97 now...
doesn't seem to be a problem.

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> i am wondering if anyone has asked their service department whether
> they have changed this requirement since the owners manual was printed
> for my 2000 GT.
> my book says use only green 3 year anti freeze.
> does anyone know why or what is in the 5 year that could hurt the 2000
> GT?

Most likely the same reason 5 years ago they recommended not using
synthetic oil. "Ford has not tested the effect or affability of that
product on Ford automobiles." Translation, no one has paid us to
recommend their product yet....

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>i am wondering if anyone has asked their service department whether
>they have changed this requirement since the owners manual was printed
>for my 2000 GT.
>my book says use only green 3 year anti freeze.
>does anyone know why or what is in the 5 year that could hurt the 2000
>GT?

I can't tell you whether a specific "5-year" product would be a
problem or not but Ford specifically recommends against some of the
non-green long life products because they are incompatible with the
gaskets and seals in some engines. For my vehicles I just use the
Green stuff like came from the factory and don't have to worry about
it.

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Brent P - 29 Aug 2006 13:35 GMT

> I can't tell you whether a specific "5-year" product would be a
> problem or not but Ford specifically recommends against some of the
> non-green long life products because they are incompatible with the
> gaskets and seals in some engines. For my vehicles I just use the
> Green stuff like came from the factory and don't have to worry about
> it.

There is a newish 5 year regular green antifreeze. I read the contents,
didn't see anything special so I figured it wasn't. Label read that it
could be used in anything practically and all stock of the previous
formulation had been replaced with it.

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fred botjon - 29 Aug 2006 19:22 GMT

>> I can't tell you whether a specific "5-year" product would be a
>> problem or not but Ford specifically recommends against some of the
[quoted text clipped - 7 lines]
> could be used in anything practically and all stock of the previous
> formulation had been replaced with it.

replace it every year,
if it gets contaminated or slightly conductive it will cause corrosion in
radiator, water pump and elsewhere.

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WindsorFox[SS] - 30 Aug 2006 06:10 GMT

>>> I can't tell you whether a specific "5-year" product would be a
>>> problem or not but Ford specifically recommends against some of the
[quoted text clipped - 10 lines]
> if it gets contaminated or slightly conductive it will cause corrosion in
> radiator, water pump and elsewhere.

Doesn't that defeat the purpose of buying 5 year anti-freeze?

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the Man - 30 Aug 2006 06:55 GMT

>>>> I can't tell you whether a specific "5-year" product would be a
>>>> problem or not but Ford specifically recommends against some of the
[quoted text clipped - 12 lines]
>
> Doesn't that defeat the purpose of buying 5 year anti-freeze?

that is the point, it is just a "sales" gimmick number not based on fact.

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WindsorFox[SS] - 31 Aug 2006 03:04 GMT

>>>>> I can't tell you whether a specific "5-year" product would be a
>>>>> problem or not but Ford specifically recommends against some of the
[quoted text clipped - 14 lines]
>
> that is the point, it is just a "sales" gimmick number not based on fact.

So you are saying that the only difference between green and orange
antifreeze is the color and what they tell you to do with it???

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Brent P - 31 Aug 2006 03:10 GMT

> So you are saying that the only difference between green and orange
> antifreeze is the color and what they tell you to do with it???

We aren't talking green and orange but new green vs. old green.
There is 5 year green now.

http://www.prestone.com/enlarged/images/prestoneAntiCool3.jpg

http://www.prestone.com/products/antifreezeCoolant.php

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Beforethen - 31 Aug 2006 16:04 GMT

>> So you are saying that the only difference between green and orange
>> antifreeze is the color and what they tell you to do with it???
[quoted text clipped - 5 lines]
>
> http://www.prestone.com/products/antifreezeCoolant.php

and you should change it out every year.

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WindsorFox[SS] - 01 Sep 2006 00:27 GMT

>> So you are saying that the only difference between green and orange
>> antifreeze is the color and what they tell you to do with it???
[quoted text clipped - 5 lines]
>
> http://www.prestone.com/products/antifreezeCoolant.php

So, what's the difference between them on the ingredient label?

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Brent P - 01 Sep 2006 01:41 GMT

> So, what's the difference between them on the ingredient label?

I'd have to compare them side by side... the new stuff didn't have
anything unusual in it by first glance

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Ashton Crusher - 30 Aug 2006 07:35 GMT

>> I can't tell you whether a specific "5-year" product would be a
>> problem or not but Ford specifically recommends against some of the
[quoted text clipped - 7 lines]
>could be used in anything practically and all stock of the previous
>formulation had been replaced with it.

Sorry I don't know where I read it but in one of the trade mags they
did an article on all the various anti-freeze's on the market and the
asked a Ford engineer about the need for changing regular antifreeze
every 3 years and he basically said you could proabaly go 5, there
wasn't any big research behind the stated interval. In a different
issue they also talked with some Ford engineer about flushing brake
systems and he said they had done research on that and unless you are
in the habit of constantly opening up your master cylinder there is no
reason to flush the system other then flushing it when you do a brake
job. Reason why was that relatively early after a flush the brake
fluid will absorb pretty much all the moisture it's ever gonna as long
as it stays sealed. So if your purpose of flushing is to keep it
moisture free you need to be flushing it every 6 months or so.

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Brent P - 30 Aug 2006 14:01 GMT

> Sorry I don't know where I read it but in one of the trade mags they
> did an article on all the various anti-freeze's on the market and the
[quoted text clipped - 9 lines]
> as it stays sealed. So if your purpose of flushing is to keep it
> moisture free you need to be flushing it every 6 months or so.

Something does indeed cause color changes in coolant and brake fluid.
Then again it takes 2-3 years for that to occur. If either is getting
dark and it's been a couple years and I am doing something with the
system anyway, might as well take care of it.

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