Searching through the archives, I have learned that there is a different type of oil for my diesel.
For the last 40K I've been using "gas" oil. I change every 3-4K,HOT ect. I'll assume I haven't done any real harm,but,should I use a case flush? The old has 165K on her.
I'd like to know soon as I'm off tomorrow and would like to change the oil (with the right stuff).
Y'all are GREAT,
84 300SD (sold)