Oil Change
How often should you do an oil change on a diesel engine?
Forum Discussion
You may believe that a $100 or so once a year is too much, but it's not for me. I change the oil once a year no matter what. I have an older engine where the parameters are 10,000 miles or once a year but your engine is likely 15,000-20,000 but still once a year. You can send in samples or any other test you like but if you change it once a year despite lesser mileage you cannot go wrong.
