I just put ~11 liters of Petrol in a Audi Q7 2008 with a tank capacity of 80l, I immediately filled it up with diesel and drove about 10 km to my hotel. Some sources say it’s fine if I keep topping it up, others say I’m screwed. Am I ok? Should I add oil?
It will be fine. Not ideal, avoid prolonged heavy throttle until you’ve burned a few tanks.