Join Date: Apr 2017
Location: West Central Sask.
Thanked 57 Times in 53 Posts
iTrader Score: 0 reviews
These engines shed iron. It's what they do. How long an oil change index to reach 34ppm?
As my engine is breaking in I had about 7ppm/1000 miles when tested around the 30,000 mile mark.
When tested at the 45,000 mile mark I was down to the 5ppm/1000 mile mark.
I run the full 15k index. My iron is high as the engine is breaking in. Also not worried as cummins does not really spec a specific condemnation limit on iron but rather it requires trending to see how the engine wears. The other part why I am not worried is that the oil life was fine. Low fuel, low soot, high viscosity retention and high additive numbers.
Don't just look at the iron, look at the whole picture and remember, one test is only a snap shot at that given time. You need many, many more tests to begin trending.
2017 Ram 3500 Megacab, SLT, True Blue, SRW, CTD, AS69RC. Ubique