Is your diesel "smokin"? Have you got diesel bug? Is your engine oil like black tar? Have you got a rotten impeller? Is your heat exchanger all clogged up? How are your tappet clearances? Have you ever suffered an air lock, or ran out of fuel? Does your exhaust go "splosh splosh splosh" (good) or "tiddle tiddle tiddle" (bad)?
All these questions and more will be answered in "dicks" one day diesel maintenance course.
Become an expert in 6 hours (or at least get enough info to get you out of a jam...)
Do register your interest for the diesel maintenance course in February...