today my 02' Duramax started leaking oil. Not just a drop, more like a waterfall! It seams that the injectors get cracked and allow diesel fuel into the oil. The dip stick showed way too much fluid in the oil pan. It's covered under warrenty. This is a problem that GM's just starting to admit. The raised the warrenty on the injectors to, 7 years or 200k miles.