Blackstone Results
I have been taking samples of oil for Blackstone for a number of years. This is the last sample and I am asking for opinions. Almost 3800+ miles towing on this change. Using Shell Rotella T 15W4...
Forum Discussion
The Duramax's typically yield the best UOA of any diesel engine, so I'm a bit surprised of the little higher than normal iron. Also the copper typically flushes out over time and yours still appears to be on the high side.
Bottom line I don't think you have to be alarmed with this report. Driving style, pulling heavy loads, cold weather short trips can have adverse affects on wear metals. I'm pretty sure your engine will make it to an easy 500k miles or more.
I would try the new CK4 Rotella since it now contains Moly, Boron and still maintain high levels of Phos and Zinc.
Bottom line I don't think you have to be alarmed with this report. Driving style, pulling heavy loads, cold weather short trips can have adverse affects on wear metals. I'm pretty sure your engine will make it to an easy 500k miles or more.
I would try the new CK4 Rotella since it now contains Moly, Boron and still maintain high levels of Phos and Zinc.
