Has Ford moved from G-05?

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Originally Posted By: SteveSRT8
Oh no, what will all the anti Dex folks burn up on now?


+1 You need to take that factory coolant out immediately and switch to conventional green. Quick! Before your LIM and headgaskets are eaten away!!!!

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Originally Posted By: bullwinkle
Originally Posted By: SIXSPEED
Here's a link to an article that provides some insight ...

http://www.motor.com/magazine/pdfs/082010_08.pdf
Good link-looks like Ford has learned from GM's mistakes & actually engineered the engine's cooling system to handle the "Dex".


That is a very interesting article. I need to review a few times, but it sure does seem like (other than short-life conventional inorganic silicate/phosphate/nitrite antifreezes, like older diesel specific formulas), silicate HOATS like G-05 and G-48 have VERY broad coverage. Iron protection, fast (silicate) and slow (OAT) aluminum protection, copper protection, and nitrites for wet-liner cavitation protection. And it flat-out says "silicates are better than phosphates." Its a shame to see silicate HOATS start to disappear in the name of economics and parts commonality. The lack of fast iron protection in pure OAT would be enough to make me want to get rid of the factory fill in a Ford Scorpion diesel rather than count on the sensors to make sure the coolant level never gets a touch low. But we'll see how it goes in the long run...
 
Originally Posted By: Garak
Originally Posted By: SteveSRT8
I see nothing at the retail or wholesale level to indicate that Dex is cheaper.


I can't speak for the States, but up here, G-05 is very difficult and expensive to get. The best place to reliably get it is at a Ford or Chrysler dealer, and they want approximately double the price of what Dexcool concentrate goes for at Walmart (or most other shops, for that matter).

In this city, only one Walmart ever carries G-05, and when they actually have it in stock, it's 50/50.


It's pretty much like that in the northeast area of the US as well. Availability is sparse, You have Zerex outside of the Mopar and Ford formulations, and thats about it.
 
Originally Posted By: SIXSPEED
From looking at a G48 MSDS, it shows 2-EHA, which is one of two OATs used in Dexcool.


Yes, which means it can't be back-fitted willy-nilly like G-05 can because of gasket compatibility issues. However, it won't suffer as badly as Dex does when there's air in the system or when there is cavitation because its also got silicates.
 
Originally Posted By: 440Magnum
Originally Posted By: SIXSPEED
From looking at a G48 MSDS, it shows 2-EHA, which is one of two OATs used in Dexcool.


Yes, which means it can't be back-fitted willy-nilly like G-05 can because of gasket compatibility issues. However, it won't suffer as badly as Dex does when there's air in the system or when there is cavitation because its also got silicates.
Agreed ... just because MB claims G05 and G48 is compatible in their cars does NOT mean it's universally true. However, I wonder if G48 might be an improved alternative to Dexcool because of the similar chemistry and the added silicates.
 
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