HOAT stands for hybrid organic acid technology, and these coolants operate similarly to what you would expect of OAT products. Two, with traditional coolants, there is always a need for regular additions of other coolant additives. If you want to get more out of your car for less, this would be an ideal way to go. OAT coolants are extended life coolants that protect the components of the engine, including those made of aluminum and magnesium. From here, you should replace the coolant. It protects the engine for up to ten years, which is the equivalent of two hundred and forty thousand kilometers. Where it has not undergone dilution, it looks purple.Ī good example would be the Mopar oat coolant ms 90032, which you can trust to protect your car in the long run. This product is available in a bright pink hue when diluted as needed. The issue you are referring to is when HOAT coolant is added to OAT coolant. Zerex Dex-Cool Antifreeze / Coolant Zerex from Valvoline is the #1 selling OEM-approved coolant brand.ĭex-Cool “MS-12106” OAT (orange) + Mopar “MS-12106” OAT (purple) is perfectly fine. HOAT (Hybrid Organic Acid Technology) Mixture of OAT and IAT antifreeze. Mixing two formulas won’t cause any dangerous reactions or explosions, but it could turn your coolant into a sludgy chemical mixture that won’t be able to flow properly through your cooling system.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. Our Jeep’s use OAT coolant, so any OAT coolant should be fine.Ĭan You Mix Orange and Green Antifreeze? It’s never a good idea to mix two different colors or types of antifreeze. the coolant having an ammonia smell.Ĭan you mix purple and orange OAT coolant?Īfter doing a lot of research, the color of coolant doesn’t matter. Mixing these coolants could result in: accelerated corrosion within the engine and cooling systems. What happens when you mix OAT and Hoat coolant?Ĭoolants of different technologies are not compatible nor interchangeable (OAT, HOAT or IAT). We recommend you use MOPAR® Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT (Organic Additive Technology). Isn’t DexCool the special coolant, and isn’t it orange? Yes to both questions, but Chrysler Group says don’t use DexCool in its products.Įngine Coolant / Antifreeze MOPAR 68163849AB – .Įngine. Lift the hood of a Chrysler product and you’ll see orange coolant in the jug and a “special engine coolant only” warning on the cap. When mixed together they can form a thick, jelly-like substance that can completely stop all coolant flow which can lead to overheating. The two coolants should never be mixed together as they do not react well. This is a mistake and can lead to expensive repairs. Some people believe that they can mix the two. Original equipment mopar coolant for the 3.6 liter pentastar engine.Ĭan you mix Mopar coolant with green coolant? PurpleNow ill have to flush my whole system and apply the right purple 10 year/150,000 coolant. RedMopar Antifreeze Coolant / Concentrate 3,785 L MS-9769ManufacturerMoparColorRedSpecificationsASTM D-3306, ASTM D-4340ApprovalsApprovals: Chrysler MS-9769Volume3.785 L1 more row the key is to use HOAT, not OAT or IAT.Ģ) The Mopar OAT for 2013 and newer (which is expensive as hell from the dealer) is the same as the latest Dexcool. You don’t need to use Mopar anti-freeze, a less expensive Chrysler-Approved HOAT like Zerex G05 will work just as well. In almost all cases, the OAT coolant is orange. HOAT is normally yellow in color, but you can also find it in purple, blue, pink or turquoise. The most obvious difference between the two is the color. What is the difference between Hoat coolant and OAT coolant? This is because even if green and orange antifreeze is usually universal, all the coolants are made with a different chemical composition. It is never a good idea despite it seeming like a quick way to save money. You should not mix any color antifreeze together. Point is, when you use antifreeze or coolant you are regulating the temperature of your engine.Ĭan you mix different color antifreeze and coolant? But in the same way that chocolate syrup needs to be mixed with milk before it becomes chocolate milk, antifreeze is not coolant until you mix it with water. When you mix antifreeze with water it becomes coolant. Hybrid-OAT combines OAT and IAT to include nitrites, making it universal for all makes and models.OAT or organic acid technology is a long-life coolant originating in Europe and now having widespread popularity in North America.Inorganic Acid Technology (IAT) gives you the classic green antifreeze.With that being said, here are the different types of antifreezes:
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