Just got my most recent analysis in. 40,000 miles in for the sample. Still running a 5k interval. Mixed driving. 42k currently on the truck. Lemme know what y’all think.
Thank you for getting your oil analysis and posting the results. This is what I think, I does not sound good if when they say listen for engine knock or to check for low oil pressure, it is probably a good thing that you change oil at 5,000 miles, I am not impressed with that Pennzoil. I would be worried if I were you, did you ever show the results to your dealer?
Since new, I have been getting oil changes done at the dealer and they always use Shell Rotella T6, my truck is at 45,000 miles and the oil changes are done when the truck displays “change oil soon” which has been at every 10,000 miles. I plan on keeping this truck for at least another 4 years and I am really hoping that this little diesel will last a long time.