CdnHO
Well-Known Member
The truck was bought new in April of 2021. 67% of the miles have been towing a large fifth wheel. Typical amount of idling and is around 15 percent. Truck has about 26000 miles so fairly new engine as far as diesels go. I change the oil annually, around 6000 miles and the first oil change was done at 2000 miles. This oil had 6100 miles on it. Have used Rotella T6 5W40 since new and changed to Premium Blue 5W40 for my last oil change. Truck runs and sounds great. As you can see, fuel dilution is no issue and regens take place at reasonable intervals. I do run Archoil in the fuel which might account for the high potassium. Obviously the iron and aluminum numbers concern me. Truck runs and sounds great. No unusual noises. Looking for thoughts on the results. Will resample at the next oil change.

