Been looking at buses for a while now. Found one on govdeals a few hours north of me (
https://www.govdeals.com/index.cfm?f...42&acctid=6186). Not much in the auction link, so I emailed the contact. Needs maintenance translates to oil in blow-by tube. I've worked on diesels before, but just my Dad's truck and jetta. What are the likely causes of this (obviously bad rings, but anything else common to this motor?). Also, what is a blow-by tube exactly? I'm under the impression the equivalent of a PCV valve, which a little oil in those is normal, so I am not sure what to make of this. What it comes down to is this rig is the right size, in the right place, and possibly for a price I could convince my wife to go for. However, I don't want to go for it to have to do a major engine overhaul immediately (which would probably cost more than the rig itself). Thanks for any help.