My second oil change on this car and sent off an oil sample to see how the oil is standing up to city driving with Cat/DPF/EGR installed. I was thinking of deleting the DPF, but after seeing this report I'll keep it totally stock. Engine is running great with 100,000 KMS and regens every 2000 Kms or so. I added 8 OZ of Archoil to this oil on fresh fill, so that's why the Potassium and Boron levels are so high.
