![]() ![]() I supplied the G-05 and the six gallons of distilled water-four gallons used to completely purge the system of the old antifreeze, and the other two mixed with two gallons of G-05 for the refill. The orange coolant, from what I understand, is HOAT, and was used up through 2012 models. My shop did this for me on my Chrysler 300M. From the 2013 manual: We recommend you use MOPAR® Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT (Organic Additive Technology) meeting the requirements of Chrysler Material Standard MS-12106. Valvoline Multi-Vehicle 50/50 Prediluted Ready-to-Use Antifreeze/Coolant 1 GA, Light Yellow/Green. ![]() From what little info I can find online, the Mopar coolant is a silicate free and phosphate free OAT coolant. Get them to completely flush the system with distilled water, and then refill with a 50/50 mix of G-05 and distilled water. Both of these are silicate free OAT coolants. You need to take your Jeep to a shop that can do a complete system flush. It's very difficult to see in the radiator recover tank, but at least it won't get mistaken for Dexcool. The only aftermarket G-05 coolant (other than Mopar) currently available is Zerex G-05, which is dyed a very light yellow-about the color of ordinary cooking oil. Mopar's G-05 is dyed an orange color that is almost the same as Dexcool, but this coolant is NOT compatible with Dexcool. etc.Do you think the green coolant that's in it is the HOAT type? If it's green, it has had regular antifreeze put in it at some point, if it originally came with G-05, which is the HOAT coolant that Chrysler uses. Its not like my '66 and '69, where there's an iron block, aluminum water pump, bronze heater core and radiator, lead-based solder in the heater core and radiator, composition head gaskets with steel faces, etc. But in recent years, system sealing has gotten quite a bit better and the number of different materials exposed to coolant has been reduced. If you’re paying attention, you’ll notice there are different colors of coolant: green, orange, and purple. Coolants have inhibitor packages because the systems AREN'T perfectly sealed, and most engines have at least 2 if not more different metals exposed to the coolant. Whether you need routine vehicle maintenance or a major auto repair, you want service you can trust - with the right tools, parts and expertise. If you can keep oxygen out and can sufficiently eliminate the dissimilar metal (galvanic corrosion) problem, you could run a sealed system just about indefinitely with pure distilled water (except for the pesky freezing problem). The back label will say its OAT will also list ASTM D-3306 Type 1. They just tell you its 10/150000 and list part number 6816384AB. Even MOPAR doesn't list MS-90032 on their gallon containers of 10yr/150,000 mile OAT coolant. OAT coolants (P-HOAT Honda Type II) have a long rated service interval.Īt some point, the corrosion inhibitors in coolant become fairly irrelevant. Its clear why there is so much confusion over the OAT MOPAR coolant. Truth is-> 10years-150,000 miles is pretty incredible. They also did a lot of cavitation tests, which is another problem with nitrite-free antifreezes. But they avoided any silicone in gaskets so that 2 EHA shouldn't (I still wouldn't use it!) cause problems like it did when DexCool first appeared. It also said (I'm summarizing) that Chrysler went out of their way to make sure the new systems tolerate other coolant chemistries, although they were very demanding (and different from Fiat) in the spec for the purple OAT so that it can last 10 years/150k miles. Both are interchangeable with no problem and will protect your car from extreme temperature regardless of high or low they get. ![]() OAT coolant MS-12106, on the other hand, is 50/50 premixed thus ready to use. This article says that the Chrysler OAT is manufactured by CCI Manufacturing. MS 90032 coolant is a concentrate product that needs mixing before use. That would help alot with the narrowing down the most compatible OAT coolant for use. I just wish I could find the maker of Mopar Brand. But, IMO since Mopar OAT has a life of 10yrs./150K miles I dont see it. Unless, an owner of a new JK doesnt mind totally and completely flushing the coolant system. I just like having a Gallon of the Correct OAT coolant in my garage at all times for top off. How long have you been employed by Prestone Actually, 13-17 JK owners are better off using Mopar OAT. My truck only has 600 miles on her.so I hate to drain the new coolant to a brand that I can buy locally for 1/4 of the price.ĭoing alot of reading leaves me to think that the Peak Global Lifetime might be my best choice. Which makes me think I can mix the 2 without issues. It is very similar to Peak Global Lifetime. I did read where this variation of a OAT coolant does not contain the 2-EHA like most Dex-Cool coolants do. By the time I pay shipping to Oklahoma cost is around $40 a gallon. Cheapest is $24.90 a gallon for 50/50 mix. ![]()
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