So I've put roughly 5,000Km on the car now. 3,000Km on the Mobil 1 0w40 that I put in it a little over a week ago now. It hasn't consumed a drop. Highway mileage at ~130Km/h (81Mph) is roughly 26Mpg.
Will have a pile of pictures in about another week to post up.
The CEL for the evap breather went out and has stayed out. I'm thinking it was just gummed up. I've put a lot of gas through it and it appears to be appreciative of that.