1/2/2024 0 Comments Mopar engine coolant![]() ![]() The coolant in the market with the most approvals. This type of additive package lasts much longer than those used in IAT coolant. Corrosion inhibitors such as sebacate and 2-ethylhexanoic acid are used instead. ![]() OAT (Figure 1) - OAT technology doesn’t use phosphates or silicate additive packages as in IAT coolants. ![]() What is the difference between OAT coolant and regular coolant? HOAT coolant offers the best of both worlds: The corrosion resistance of IAT coolant. OAT coolants last longer than IAT coolants, but they don’t do as good a job limiting corrosion within the cooling system. But the OE recommendation is the safe way to go, and because you can easily obtain a DexCool, it’s a no-brainer. Sure, the vehicle probably will be out of warranty by the time you get it and have to make a decision. The color doesn’t matter as much since it’s just a dye. The short answer is that you can mix different coolant brands and mixtures as long as they are the same type of coolant. Mixing these coolants could result in: accelerated corrosion within the engine and cooling systems. Just go with Mopar and know it’s correct.Ĭoolants of different technologies are not compatible nor interchangeable (OAT, HOAT or IAT). Some folks say the Dex is compatible but others say the formulations vary. Chrysler buys the stuff in bulk.ĭex-Cool® is an OAT, an ethylene glycol based antifreeze that is nitrite-, borate-, phosphate-, nitrate-, amine-, and silicate-free with the same metal wear protection as an IAT antifreeze.īig NO to the “universal” OAT compatible coolants. Zerex gets a yellow dye while the Mopar version gets a pinkish dye. Chrysler Material Standard MS-12106.ġ) Valvoline makes the HOAT for Chrysler. The trend now days is low to no silicates and for the coolants to last for 5 years. I ran the Original Green in my 2002 for a couple of years with no problems. HOAT = Hybrid OAT, ie it is OAT with some silicates in it, not a big deal if considering PEAK or Prestone all vehicle extended life coolants coolants (these are OAT). compatible with the radiator engine coolant and may plug the radiator. Do not use water alone or alcohol-based engine coolant (antifreeze) products.Organic Additive Technology (OAT) engine coolant is engine coolant (antifreeze) or any “globally compatible” coolant (antifreeze). OAT, or Organic Acid (Additive) Technology, describes the type of materials responsible for the corrosion protection offered by this product. No need to mix with water just pour it into your radiator. Mopar Replacement OAT 50/50 Premix Antifreeze Coolant is a long-term formula, blended for dependable performance up to 10 years or 150,000 miles. Specifically formulated for engines requiring OAT coolant. ![]()
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