Just got my new bus home!!!!

The questions begin....

1. Which nut is the oil drain?  My old 1600 had only one, this has
three?

2. Any thoughts on Synthetic Oil???

3. Anyone with a wiring diagram for ASI's?  Or at least know what runs
off the main battery and what runs off the auxiliary?

4. Where can I get a propane tank (or how can I check the safety of the
rusty one I have)?

5. Tires, tires, tires---  Suggestions???????

THANK YOU EVERYONE FOR YOUR HELP- THE LISTMEMBERS ARE GREAT!!!!!!!

Good Road,
Matt & Nise

81 ASI Riviera "....."