New VAG Group "G12 Evo" coolant

[FCD]

As it turns out it looks like VW has yet again changed their coolant formulation from G13 to "G12 evo"

No info online really about it or what corrosion inhibitors it has or anything else.

Anybody found anything?

 

[nthach]

Originally Posted by FordCapriDriver
As it turns out it looks like VW has yet again changed their coolant formulation from G13 to "G12 evo"

No info online really about it or what corrosion inhibitors it has or anything else.

Anybody found anything?

https://forums.ross-tech.com/showthread.php?20182-Engine-Coolant-There-is-a-Difference!!/page2

Seems like it's VAG's new coolant for the E-Tron and A4, and will be used in all new Audi models.

 

[FCD]

Interesting, i do wonder if it still uses the Ethyleme glycol / Glycerin mix of G13 or something else, and what inhibitors.

 

[Jake_J]

It's the latest and greatest BASF/Glysantin G65 coolant, which according to the datasheet they have added phosphate to the Si-OAT, to make it a PSi-OAT.

Quote
GLYSANTIN® G65® contains a corrosion inhibitor package based on
salts of organic acids, phosphate and silicate (PSi-OAT coolant).
GLYSANTIN® G65® is free from nitrites, amines and borates.

GLYSANTIN® G65® is officially approved by:
ï‚· DEUTZ DQC CC-14
ï‚· Volkswagen Group TL 774-L / G12evo


https://cdn.website-editor.net/61024071e2e048f499c0dc27deb2b46a/files/uploaded/Glysantin_G65.pdf

There is also a G64 green coolant which is the new Volvo coolant, and looks to be the same or very similar to G65 minus the dye added. It is mentioned that it is the "climate successor" of G48 and that it is compatible with flux-brazed aluminium heat exchangers.

https://schmierstoffe.kaufen/gb/fre...l_kleinfass/154-basf-glysantin_g64_green

https://img.diytrade.com/smimg/2916517/49552973-11834931-0/nn/f8b0.jpg

Can't find a SDS for G65 so can't say if they changed the amount of Glycerin that was in VW G13, although it is odd they went back in their naming convention and didn't name the new coolant G13+ or G14.

 

[FCD]

Originally Posted by Jake_J
It's the latest and greatest BASF/Glysantin G65 coolant, which according to the datasheet they have added phosphate to the Si-OAT, to make it a PSi-OAT.

Quote
GLYSANTIN® G65® contains a corrosion inhibitor package based on
salts of organic acids, phosphate and silicate (PSi-OAT coolant).
GLYSANTIN® G65® is free from nitrites, amines and borates.

GLYSANTIN® G65® is officially approved by:
ï‚· DEUTZ DQC CC-14
ï‚· Volkswagen Group TL 774-L / G12evo


https://cdn.website-editor.net/61024071e2e048f499c0dc27deb2b46a/files/uploaded/Glysantin_G65.pdf

There is also a G64 green coolant which is the new Volvo coolant, and looks to be the same or very similar to G65 minus the dye added. It is mentioned that it is the "climate successor" of G48 and that it is compatible with flux-brazed aluminium heat exchangers.

https://schmierstoffe.kaufen/gb/fre...l_kleinfass/154-basf-glysantin_g64_green

https://img.diytrade.com/smimg/2916517/49552973-11834931-0/nn/f8b0.jpg

Can't find a SDS for G65 so can't say if they changed the amount of Glycerin that was in VW G13, although it is odd they went back in their naming convention and didn't name the new coolant G13+ or G14.


Yes it would appear to have the same inhibitor package as G64.
And yes it's odd they didn't name it G13+ or G14

 

[930.engineering]

I'm debating with myself whether I should go with G13 or G12evo. I'm pretty sure my facelift Mk7.5 GTI (7.2017 built date) came with G13 from factory and that's still in btw. Anyone feeling able to give a hint? Does G12evo provide any advantages? Based on my research G13 and G12evo are miscible.

 

[Jake_J]

I'm debating with myself whether I should go with G13 or G12evo. I'm pretty sure my facelift Mk7.5 GTI (7.2017 built date) came with G13 from factory and that's still in btw. Anyone feeling able to give a hint? Does G12evo provide any advantages? Based on my research G13 and G12evo are miscible.

Either one will work fine, from what I've read it looks like the introduction of Controlled Atmosphere Brazing (CAB) aluminum parts into has been listed as the main cause (or one of the main causes) of adding phosphate to the Euro Si-OAT coolants. That would be the advantage of G12evo that like Ford's new yellow coolant, and the new G64/G65 formula's used by BMW and Volvo it has phosphate added to prevent any issues with CAB aluminum parts in the cooling system like Ford experienced with the Transit van heater cores. It's a quite new technology to use in cars so I'm doubtful a 2017/18 VW would have it, and if it did then I think VW would advised G13 vehicles to switch which they haven't done.