Posted 3/25/2008 13:17 (#341519 - in reply to #341251) Subject: Re: JD 4030
NESD
If it is doing a lot of idling and not getting worked in cold weather it is probably fuel slobber, unburned fuel mixed with diesel soot leaking from the exhaust will look just like black diesel oil. Most likely just needs to be warmed up and worked and the slobbering will quit,