Trans Fluid "purge"

[HDCummins]

So I bought a used 2023 Ram 2500 6.7 with the 68RFE Trans. Truck currently has 51,000 miles on it and I'm preparing myself for the trans oil change. I have no clue what oil is in it and will be switching it to Amsoil. I know I need my filters and pan gasket. I know about getting the metal filter threads and possibly a pan with plug. My question is has anyone done where they remove the return line to the trans to "purge" out the old oil from the coolers and converter? I have seen a few videos of people doing it on the Aisin trans but not the 68RFE? Our is there a better way to try and get out more of the old oil? I was going to use Amsoil Engine and Trans Flush before also and wanted to make sure I got most of that out.

Thanks for any replies I love the power this truck has and can't wait to get my camper and boat behind it.

 

[flan]

Short of doing it like the aisin I don’t think without a proper machine there’s any other way. I imagine the procedure would be the same.

 

[AH64ID]

So I bought a used 2023 Ram 2500 6.7 with the 68RFE Trans. Truck currently has 51,000 miles on it and I'm preparing myself for the trans oil change. I have no clue what oil is in it and will be switching it to Amsoil. I know I need my filters and pan gasket. I know about getting the metal filter threads and possibly a pan with plug. My question is has anyone done where they remove the return line to the trans to "purge" out the old oil from the coolers and converter? I have seen a few videos of people doing it on the Aisin trans but not the 68RFE? Our is there a better way to try and get out more of the old oil? I was going to use Amsoil Engine and Trans Flush before also and wanted to make sure I got most of that out.

Thanks for any replies I love the power this truck has and can't wait to get my camper and boat behind it.

View attachment 84056

The procedure would be the same as the Aisin, but I have to ask why. You're not even to the first published change yet, so the fluid is very likely OE. (48mo/60K miles for frequent towing on a drain/fill or 96mo/120K miles for normal use. The filter has a 96mo/120K mile change interval)

Drop the pan, replace the filter screw, add a new filter, maybe add a drain plug and put it back together. Top it off with your favorite fluid and call it good.

With only 51K on it I wouldn't be concerned with a full flush or a flushing additive.