11/15/2023 0 Comments Napa hoat coolant![]() Similarly, if you buy a second-hand car, the colour of the coolant gives you no idea as to when it needs to be changed.” Do I Need to Use a Certain Colour of Coolant in My Car? “That’s why it’s so confusing – you can open up the bonnet of a new car and have no idea what the coolant is based on. “These days, there’s no real reason for a coolant manufacturer to use a certain colour, so it’s not easy for you to know what chemicals are in the coolant just by seeing whether it’s blue, green, yellow or orange. They could be a blend of IAT and OAT chemicals, and were therefore named ‘Hybrids’. These ‘Extended Life Coolants’ (ELC), were usually orange in colour and offered a five-year or 100,000-mile change interval. “Next came Organic Acid Technology (OAT) coolants, whose chemical make-up offered better protection for cooling systems, and extended the life of the coolant. With these types of coolants, you’d normally have to change them every two years, or every 60,000 miles. “Older coolants that used Inorganic Additive Technology (IAT) were usually blue or green in colour. As our expert, Bruce Ellis, explains: “In days gone by, the colour of coolant was determined by the type of chemicals used to prevent corrosion - meaning you could tell a lot about the type of coolant used by its colour. As such, great care should be taken when topping up your car’s cooling system. Unfortunately, it’s no longer possible to determine a specific type of coolant from its colour alone, as the shade has little bearing on the chemical make-up of the product. Vehicle fluids vary in colour from bright pink to reddish-brown, so if you ever need help identifying which is which, take a look at our car fluid finder chart.Īs for coolant/antifreeze, there are a couple of key differences as to why some products are one colour and others are another. €¢ debris (particles) floating in the coolant.įurther inspection by the technician may find corrosion in the system.Why is Coolant/Antifreeze Different Colours? €¢ accelerated corrosion within the engine and cooling systems. For heavy duty truck and extreme duty cycleĪpplications refer to the Service Information or Owner's Manual for proper maintenanceĬAUTION: Vehicle Damage may occur if dissimilar coolants are mixed!Ĭoolants of different technologies are not compatible nor interchangeable (OAT, HOAT or Service interval of 10 years or 150,000 miles. This new coolant is an Organic Additive Technology (OAT) ( Vehicles and beyond, for all engine applications except the ones listed in the note above. has released a new engine coolant for the 2013 model year NOTE: This bulletins applies to all vehicle listed above for every engine applicationĮXCEPT the 2013 MK equipped with the 2.2L Diesel engine (sales code ENE)Īnd the JC vehicle equipped with the 2.0L Diesel engine (sales code EBT).Ĭhrysler Corporation LLC. We've had this discussion prior, it ended in a locked thread my warning is valid.Īttention! Release Of New Engine Coolant Organic Additive Technology (OAT)Ģ013 (DP) Ram Truck (4500 / 5500 Chassis Cab) During the PBI prior to delivery of the vehicles, even topping off the coolant overflow tank with a small amount OAT when a vehicle called for HOAT, or vice versa causes problems. Even if you flush the cooling system, if there is a little of the HOAT remaining it will cause problems, in fact Chrysler has issued TSB's warning their techs about this. G-05 is HOAT they will not mix w/o causing a problem. Mixing G-05 with OAT is a formula for disaster. The OPs cooling system calls for OAT coolant. I am 99.44% sure it is fully compatible with the original pink coolant. Zerex G-05 by Valvoline is a HOAT that I use in my Mopar built VW Routan. ![]()
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