[cobrin]

Yep mine also has the same amount of wet patch it had on it 100K kms ago so it can keep getting a clean.I'm thinking about using a Fumoto quick drain valve on the sump and modifying the underbody tray to fit/make an inspection hatch out of making the job easier but that would see me not take the tray off and subsequently not clean the patch so bit unsure at the moment..

My next bit of work will be a clean out of the EGR valve and intake manifold will likely get a clean and new seals and that's about it.