Originally Posted by noir77
I'm suspecting the gaskets on the pan that comes out to let you change the oil.
I hope you don't take off the whole pan to change the oil! There is a drain plug for that!! You're going to learn a lot of stuff really fast, so read a lot, remember what you can, and don't be afraid to ask questions!
You HAVE to find out what your engine is. Just take some pictures and post it. Most of us on here could tell you from just a pic or two of each side.
What year is your bus? Make sure you're using appropriate 15W-40 motor oil in your bus! Diesels need the heavier duty oil.
Good luck out there amigo