Big Z wrote:Anything that the owner's manual states.
^^^ you wanna stop spamming tech and post a link to the owner's manual so you could be of some help? You'd think if they had a manual they wouldn't have to ask, ent? *steups*
mchan, I say consult with a mechanic who'll be able to guide you to the proper weight diesel oil depending on the age of the engine.
Barring that, a lot of the time I see 15W-40 diesel oil selling in the parts places. That may be a good place to start and monitor for excessive burn-off.