Antifreeze in transmission 2010 Duramax??

Huntindog wrote:

the1adman wrote:

Huntindog wrote:

Cummins12V98 wrote:

Huntindog wrote:

Cummins12V98 wrote:
"As far as the tranny cooler in the radiator, it is there for a reason.To keep the fluid from running too cold."

Seems the MD AISIN does not need to be heated up and as mentioned they run cooler than any trans I have heard of.

12V98 wrote:
This sort of issue is another reason I like my AISIN trans. It has a cooler and that's it, no heat exchanger.

12V98 wrote:
My trans temp runs 165 towing or not and when climbing miles of 6% grades it may get as high as 172. OH and the trans is NOT tied to anything other than it's own cooler.

I just looked up your trucks cooling system on Rock Auto. You have two radiators. The secondary does not have a tranny cooler in it. The Primary or Main radiator DOES have a tranny cooler in it.
Look it up for yourself. They even have pictures.

Sorry my truck has ONE radiator. My truck is a 2015 and the 13 and 14 did have two radiators. I have no idea if the trans is tied to one of those radiators or not.

For fun post the pics.

Here you go. Click the link and then peruse the 2015 parts.Rock auto parts lookup

I even went all tha way up to 2017. and they all show the same parts.
On edit:
Here is another link to Autozone; Autozone 2015 Ram 3500 diesel parts lookup
Shows the same thing.

Final edit: I have looked at quite a few sites now, and they all agree. The Ram diesel auto tranny uses the same two radiator setup from 2013 to 2018.

So either they are all wrong, or you have a VERY special one off truck.

The dual radiators ended sometime in 2015 models. Some early models had them and some late models did not. 2016 and newer is one radiator.

All of the sites I checked, including some Mopar sites list the Dual radiators all the way to 2018.
In fact I cannot find a single radiator part listed anywhere.

OK, I just spent some time on the Dodge Cummins forum and found this:2013 to 2015 RAM trucks have dual radiators for cooling engine. ( I may be off on year range )

They have the same main radiator as trucks before and trucks after. Example, a radiator from a 2018 truck is identical to a main radiator on a dual radiator setup on a 2015.

The difference is 2 composite Y pipes, some smaller hoses, and a small radiator mounted in front of the main one. You get more coolant and larger surface area. In theory, these trucks should be able to dissipate heat better. Yet, 2016 n up trucks returned to just one radiator. These trucks produce more power and have higher numbers. So at some point RAM decided the original Single radiator performed well enough. Or, decided to decrease parts and POF points.

I’ve read a few guys with the dual setup, remove the smaller cooler. They do this because the top Y cracks, and it’s cheaper to just bypass the smaller cooler. Again, as the main radiator is identical on trucks before and after, cooling performance is still good. I’ve also read where many say cooling as actually improved, including AC.

The reason is because the hot air off the smaller one, reduces heat transfer on the 2nd main radiator. And when parked, the heat from the smaller one radiates on to the AC cooler. Reducing AC performance when parked.Link:Cummins radiator discussion

So it appears that
12V98 may be correct in only having one radiator, but wrong about the tranny cooler, (which was/is the whole point) as all trucks from 2013 to 2018 use the same primary/Main radiator, which has a tranny cooler in it.

If one reads down further in the linked thread, some are talking about doing a modification to eliminate the radiator tranny cooler....And yes they did touch on cold weather concerns....

So I guess the thing to ask now is:
12V98, Is your truck stock? Or did you modify it as far as the tranny cooler goes?