Fuel consumption and tyre pressure

Hello guys, there would have been a question about fuel consumption and tyre pressure. I calculated my fuel consumption this month and came to almost 10 liters per 100 KM, which seems to me a little high. I have to say that I am mainly on the road in urban traffic and I am also on the road quickly with highway rides, so 130-150 KM/h. Switching into the next higher gear I do at about 3,000 uPm. Oil change with filter I made before about 4,000 KM with HighStar 5W40, as well spark plugs (Motorcra What I want to mention is the fact that my “Essi” in idle mode always moves between 1000-1100 uPm, which is probably also a bit high and could probably also have an effect on consumption. LLRV, DK-Poti and KWGEV as well as sensor in the intake tract have already been renewed, thus speed fluctuations went away but idle speed remained unchanged. LMM is also ok (if I pull plugs, it starts stuttering and goes into emergency run program). Fuel consumption real? What does your “Essi” consume on average? Tyre pressure is certainly also a topic in fuel consumption. How much air do you drive, for example, are the predefined values in my BA from FORD optimal? Drive almost never “fully loaded”, only my wife I take with me from time to time (if she was good). Tyre size is 185/60 R14. Thanks already for the info ́s.