G-05 Coolant As A DEX-COOL Replacement

Has anyone with bad experiences with DEX-COOL gone to G-05 instead of conventional green or reusing DEX-COOL? All I really know about G-05 is that it has been around for about 20 years, Mercedes and John Deere have
used it successfully in that time, and Ford and Chrysler have gone to it recently. I would bet it would work fine as the site below says it meets GM Specs 1825M and 1899M...
http://www.valvoline.com/pages/products/product_detail.asp?product 
BTJustice
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"Buford T. Justice" wrote

GM
Why don't you try it in your vehicles and report back to us?
Ian
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Why would I want to try it to find out when someone here may have already? I want to talk to them not you so scram!
BTJustice

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Seriously. I have heard that some GM dealerships have replaced DEX-COOL in some GM vehicles completely with conventional green which is probably just fine. I honestly wonder if G-05 would be an even better choice since it is an OAT coolant (well actually it is a hybrid so it is an HOAT coolant). If there are any gaskets or seals designed for an OAT coolant, I would think G-05 would work wonderfully. Correct?
I do notice that the site in my original post has a FAQ section and says this...
Can you use Zerex G-05 in a GM Vehicle? While one can use Zerex G-05 in a GM vehicle, Valvoline recommends that you use a GM DEX-COOL approved formula in a GM vehicle under warranty.
Reading between the lines, I am taking this to mean that they don't recommend it unless your vehicle is out of warranty. Heck, I might actually go ahead and convert to G-05 from conventional green just to see. I'll research the topic more before I make the jump.
BTJustice
"Buford T. Justice" wrote in message

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For some reason www.valvoline-technology.com gives much more information about Valvoline products. www.imcool.com should also have information about automotive coolants.
I've been using Dex-cool in an old Toyota since the product came out, and I don't understand what the complaints about it are (even without the Chevy 3.4L V-6). G-05 contains a fairly high dosage of silicate, which Toyota doesn't like (but Toyota antifreeze is very similar to conventional green otherwise).
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Yeah one of the big arguments going on is over silicates. Some say not having them increases water pump life. Other says that is far from the truth and that silicates protect aluminum nicely. I found this article that made since. In fact, the radiator cap on the first picture looks like the one off my Mom's car but the radiator spout on hers was not nearly as bad as this one. I was impressed with the 2 water pump pictures in that article also.
http://www.performanceradiator.com/Publications/Information/Motor%20mag%20co oling%20sys.pdf.pdf
BTJustice

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On 6 Oct 2003 04:45:21 -0700, do_not_spam snipped-for-privacy@my-deja.com (do_not_spam_me) wrote:
| |> Has anyone with bad experiences with DEX-COOL gone to G-05 |> instead of conventional green or reusing DEX-COOL? All I |> really know about G-05 is that it has been around for about |> 20 years, Mercedes and John Deere have used it successfully |> in that time, and Ford and Chrysler have gone to it recently. |> I would bet it would work fine as the site below says it |> meets GM Specs 1825M and 1899M... |> |> http://www.valvoline.com/pages/products/product_detail.asp?product  | |For some reason www.valvoline-technology.com gives much more |information about Valvoline products. www.imcool.com should also have |information about automotive coolants. | |I've been using Dex-cool in an old Toyota since the product came out, |and I don't understand what the complaints about it are (even without |the Chevy 3.4L V-6). G-05 contains a fairly high dosage of silicate, |which Toyota doesn't like (but Toyota antifreeze is very similar to |conventional green otherwise).
Ditto. I ran the same DexCool in my RX7 race car for 3 years with no problems. Engine failed finally and when torn down the coolant passages looked fine. In fact, they looked better than any of the other 12a motors I had disassembled that came out of street cars with green antifreeze. And I couldn't make that motor overheat, even idling 20 minutes with no fan. Rex in Fort Worth
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