Coolant?

[Big3MG]

I have the Mopar OAT coolant in a jug and the only reference to OAT is on the back label in fine print under the description.

 

[Octane]

I buy my mopar 150/ 10 year concentrate on amazon for 25 to 29 a gallon jug.Its oat of course,without that bad chemical in it that isnt good for silicone or something.

 

[nascar72]

Solved that problem on my '03 with the hemi cple years ago. The owner's manual stated the use of Mopar HOAT coolant. When I replaced the radiator. Did complete drain and flushed with fresh deionized water then filled with 70% Prestone universal all makes all color compatible with either Dex, OAT, HOAT etc. Did same thing on my '08 2500 also with the hemi. So far, so good.

 

[knightjp]

I did quite a bit of reading and came cross the Prestone website. When I use it and choose the coolant based on the vehicle make and model, I get this as the same result for both the Ram and the Durango..

Prestone - American Vehicles coolant

This looks like a decent coolant that I could use on both.. I assume that this is OAT.

 

[HEMIMANN]

10 years / 300,000 miles, eh?

Yes, it would have to be OAT. Mopar OAT is 10 years 150,000 miles.

 

[knightjp]

10 years / 300,000 miles, eh?

Yes, it would have to be OAT. Mopar OAT is 10 years 150,000 miles.

Yes.. I assume so. But it is not Dex-Cool. They have a separate Dex-Cool variant, so I assume that this should be good for both vehicles.

Assuming that we all aren't expert and just consumers, if I were to do a proper flush of the systems for both vehicles, would HOAT or OAT be better for them in long run, provided I stick to a 5 year change cycle...?

 

[crackerjack1957]

 

[HEMIMANN]

You should use whatever was filled at the factory so you don't get chemical incompatibility in the circuit someplace.

 

[turkeybird56]

You should use whatever was filled at the factory so you don't get chemical incompatibility in the circuit someplace.

Use what was put in factory. Not to beat a "dead" horse, but in this case, OEM all the way. I hate ads that IMHO beat their own back on their product, just my Opinion.