Originally Posted by Evolv0
hmm, what is the difference between the 2 coolants??? I think I have the orange in my 2014 hemi... or does this only apply to the v6
Your 2014 has purple OAT type coolant in it as the factory fill. Chrysler went from an orange dyed HOAT type coolant to the newer purple dyed OAT type coolant between
the 2012 and 2013 model years!
Chrysler started to use an OAT (Organic Acid Technology) MS-12106 Spec, G-30 European spec, 10yr/150K mi, coolant in all their 2013 & up model year vehicles. Chrysler dyes it's OAT type coolant purple. This was done to keep the coolant fill the same in all of Fiat's car lines as Fiat uses OAT type coolants and purchased Chrysler ~ 2010. Mopar OAT p/n 68163848AA (concentrate) / p/n 68163849AA (50/50 mixture) MSRP $53.35/gallon (concentrate)
/ MSRP $33.35/gallon (50/50 mixture)
Before that Chrysler had used a HOAT (Hybrid Organic Acid Technology) MS-9769 Spec, G-O5 European spec, 5yr/100Kmi, coolant from 2000 ~ 2012. Chrysler dyes it's HOAT type coolant orange. This was the coolant Mercedes has used for over 30 years, (dyed blue) with great results. When Mercedes had owned most of Chrysler during that time period they started using HOAT type coolant. Mopar HOAT p/n 68048953AB (formerly 5066386AA) MSRP $21.95/gallon. Concentrate
Do not mix this HOAT type coolant with anything made by Prestone!
This warning is from Chrysler;
Avoid non-HOAT mixtures, such as Prestone 50/50, that claim they can be used in vehicles of "all makes, all models".
Do NOT mix the two coolants!!
Although they are both ethylene glycol based coolants, dyed a different color to differentiate them, the corrosion inhibitor chemicals they contain do not work well together and are not compatible with each other. Also Chrysler may claim a 5 or 10Yr service life for these coolants, but I would change them out well before that suggested service interval!!
This is directly from Chrysler on mixing the two different coolants;
Mixing of engine coolant (antifreeze) other than specified Organic Additive Technology (OAT) engine coolant (antifreeze), may result in engine damage and may decrease corrosion protection. Organic Additive Technology (OAT) engine coolant is different and should not be mixed with Hybrid Organic Additive Technology (HOAT) engine coolant (antifreeze). If a non-OAT engine coolant (antifreeze) is introduced into the cooling system in an emergency, it should be replaced with the specified engine coolant (antifreeze) as soon as possible.
I hope your local dealers know what they're doing with late model WK2's requiring cooling system service!!