2010 Dodge Ram 3500, Rotella T6 5W-40, 15174KM

[Farmer]

Here's my first UOA. They did make a mistake saying its 0W-40 but its T6 5W-40. Calcium is higher due to me being lazy and using T5 10W-30 to prefill my filter. Not sure if that caused it to read slightly thin for a 40 weight, or that it sheared down. There is also 300ml of Liqui Moly Anti Friction, that seemed to add about 150ppm of molybdenum.

Is my iron considered high?

 

[A_Harman]

No, 21ppm of Iron I consider to be very low for 15,000 km. They heavy truck guys don't change oil until Iron gets over 100 ppm.

TBN is still pretty good, too. It would probably be the thing that would trigger an oil change if you wanted to get all the life out of the oil.

You could probably double the oil change interval and still be OK. But creep up on it slowly. Try 20,000 km for the next OCI.

 

[JC1]

Farmer, how many liters does the crankcase hold?

 

[FCD]

you could probably go 17.500

 

[Ohle_Manezzini]

6.7 Cummins has 12qt sump capacity.

 

[Donald]

I have gone 18k in my older Dodge with Cummins with T6

 

[The motor guy]

Does T6 really have that much moly? Man I should start running that. I've been looking for a good oil to run in my ope

 

[spasm3]

Originally Posted By: motor_oil_madman
Does T6 really have that much moly? Man I should start running that. I've been looking for a good oil to run in my ope


He added liqu-moly anti-friction.