RE: 2005 5.9L cummins oil change
I did my last oil change last week and was surprised to not see one spec of metal in the used oil or pan. I have changed from Rotella 15W40 dino oil to Rotella 5W40 Synthetic and the truck appears to run quieter. I am going to do some towing so I figured that the synthetic would be better overall. I have always done oil changes every 5,000 km it is easy to remember. I am probably going to change the oil based on every 200 hrs as I have always done with highway trucks and industrial equipment without any engine failures to date.