Sorry, I don't quite understand. Is Prestone implying they ARE compatible with Dexcool?
dexcool in rusty engine
- Thread starter mbaker
- Start date
Will Dexcool or any of the 2EHA clones cause issues with old technology intake gaskets, not the plastic frame or even steel with rubber sealing rings. I mean the old steel core covered entirely in blue or gray whatever type sealing compound. If that answer is no then I’m not gonna worry and will probably put Dexcool in because I have other vehicles with it already.
Is the blue or gray silicone based?
Yes. AMAM and Dexcool are completely compatible. AMAM is compatible with everything according to Prestone. All Makes, All Models.
I had a company ‘18 Ford Transit 250 3.7 that came with Specialty Orange, which was basically Dex. Ford had issues with heater cores plugging, so they changed to Specialty Yellow (Prestone w/Cor-Guard). When the Ford dealer did the recall, they didn’t even flush the Orange/Dex out, they just dumped in the Yellow premix… No issues occurred. Sold me on it!
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- Nov 4, 2020
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This is all you need to know.
2EHA is the holy grail of cooling system inhibitors. 2EHA's plasticizing attributes doesn't destroy gaskets, but rather it preserves and conditions them. It keeps the most fragile parts in a cooling system from cracking, deforming and leaking. Consider it an elixir of perpetual youth for your cooling system components. I've run the stuff since 2007 in literally everything I service and haven't had one single issue. I have vehicles I work on regularly that are 20+ years old with mileage deep into six-figures that I've been using Dexclones on that have all original cooling system components, including o-rings, rubber hoses and plastic parts galore.
Peak has followed suit and also done the exact same thing with their Original Equipment Technology (OEM color matched) coolants - they are all Dexclones now. Think about it, if 2EHA was such a problem, why would the two largest coolant companies in North America be using it in their most popular product lines - the cheap universal coolants and the OEM-colored ones? Why would thousands of repair shops across the country use this stuff in everything they service? Because the stuff is awesome. Period.
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Okay, that sounds awesome. So why doesn't Prestone have any mention of Dexcool on the package? I would not add-to or swap a Dexcool application unless the product info specifically says compatible and recommended.
Some unnecessarily detailed lore as to when and why they switched to Dexcool
