i'm close to the 600 mile mark already, so i'm going to change oil in the morning. the filler plug is behind the pipe, on the primary chain. i can cut a hex wrench down to loosen the big filler plug but not sure if there is enough space to slip it out. anyone ever took the plug out without removing the exaust? the engine oil should be a piece of cake. i have decided to use 5w-40 rotella t syn., and 3000 mile oil changes.