Amsoil DTT 10W-30, 10K, 19 Ram 2500, 6.7 iSB Cummins, 69K

[TXHunter]

Lots of towing this round, 10K 36ft RV and multiple pulls of the Tundra, Jeep, and WS6 on the car hauler.

Make/Model: Cummins ISB 6.7L 2019+
Vehicle: 2019 Ram 2500

The first two runs were Amsoil ADN while this most recent is Amsoil DTT 10w-30. Current fill is once again the Amsoil DTT 10w-30 paired with the Amsoil EA oil filter.

 

[fantastic]

Fe is high, Are you in the mountains in TX? That Cummins is shedding quite a bit for just pulling a 3k lbs car around.

 

[56Cummins]

Going off the notes, I wouldn't push that to 11k.

Per mile your aluminum is trending up potassium is staying the same, iron is doing better. Rings and bearings look good.

Interesting report, Thanks for posting.

 

[TXHunter]

Fe is high, Are you in the mountains in TX? That Cummins is shedding quite a bit for just pulling a 3k lbs car around.

Not in the mountains, no. But the 36ft 10K lb RV is a far cry from a 3K lb car. I mentioned several trips with the RV, while also some runs hauling the 5.7L Tundra or the Jeep Unlimited Rubicion on the car hauler. I've only hauled the 3700 WS6 a few times, most of the runs on this oil were the RV, followed by the Tundra, and then finally the Rubi.

I think the DTT line of Amsoil held up better this last run, but debating on whether moving to a 15w-40 (in Texas I'm less worried about 10w-30 for the cold) might help with some of the wear numbers while towing.

 

[4WD]

Not in the mountains, no. But the 36ft 10K lb RV is a far cry from a 3K lb car. I mentioned several trips with the RV, while also some runs hauling the 5.7L Tundra or the Jeep Unlimited Rubicion on the car hauler. I've only hauled the 3700 WS6 a few times, most of the runs on this oil were the RV, followed by the Tundra, and then finally the Rubi.

I think the DTT line of Amsoil held up better this last run, but debating on whether moving to a 15w-40 (in Texas I'm less worried about 10w-30 for the cold) might help with some of the wear numbers while towing.

There’s always 5W40 year round …

 

[fantastic]

Not in the mountains, no. But the 36ft 10K lb RV is a far cry from a 3K lb car. I mentioned several trips with the RV, while also some runs hauling the 5.7L Tundra or the Jeep Unlimited Rubicion on the car hauler. I've only hauled the 3700 WS6 a few times, most of the runs on this oil were the RV, followed by the Tundra, and then finally the Rubi.

I think the DTT line of Amsoil held up better this last run, but debating on whether moving to a 15w-40 (in Texas I'm less worried about 10w-30 for the cold) might help with some of the wear numbers while towing.

My mistake, Seen another Cummins posted here that also towed a heavy RV with a good chunk lower wear. What does that equate to? Nothing I can say, carry on. Hope is to rely on that legendary engine.
Thanks for posting your 6.7L UOA.

 

[TXHunter]

I can't figure out how to edit the original post, but I double checked my records. Original sample was Ram dealership fill when I bought the truck, which I assume would be Valvoline. 2nd fill was Amsoil ADN which seemed to struggle as viscosity dropped out of normal range. The last and most recent was the DTT which held up better, but aluminum and iron were still higher.

While the DTT is obviously looking better, and was subjected to as much or more towing then the ADN was, I'm still considering a switch on the next OCI to the Amsoil Signature Series Max-Duty 15w-40 instead of the 10w-30.

 

[Bighorn2500]

I would avoid the 15w40 in the newer hydraulic lifter 6.7L, there’s a TSB against it.

A quality 5w40 will be fine.

 

[Hohn]

I would avoid the 15w40 in the newer hydraulic lifter 6.7L, there’s a TSB against it.

A quality 5w40 will be fine.

Valvoline Premium Blue Extreme 5w40. That would have been the oil used to validate the 5w40 in the TSB.

 

[TXHunter]

I would avoid the 15w40 in the newer hydraulic lifter 6.7L, there’s a TSB against it.

A quality 5w40 will be fine.

And that's why I continue to come here. Had no idea about TSB 09-011-20 or 09-013-23. Probably just saved my lifters there Bighorn2500, thank you! So as you stated, I'll be looking at 5w-40 options. Thanks!

 

[6.7 CTD]

And that's why I continue to come here. Had no idea about TSB 09-011-20 or 09-013-23. Probably just saved my lifters there Bighorn2500, thank you! So as you stated, I'll be looking at 5w-40 options. Thanks!

You could always use Mobil Delvac ESP 5W40, VPBE 5W40, Chevron Delo XSP 5W40, AMSOIL 5W40, or HPL CK4 5W40. I’d recommend a 40w since you’re in Texas, towing, and running OCI’s out to 10-15k miles. You’re also likely experiencing fuel dilution based on the flash point, in most samples, and kv100 in the 15k oci. Thanks for posting.