Hi Everyone,

I bought the 2016 Audi A6 3.0T Quattro Prestige model with 13k miles with (20-inch wheels s-line package) a month back as a CPO.
A full tank gives only 230 miles in the city!!!. The fuel indicator shows 420 miles when the tank is filled. (i typically drive only 10 miles per day office/home and park the car in the office garage)

The fuel indicator shows a diff value in the morning compared to what I see when turned off the car in the night. (Yesterday night it showed 90, suddenly in the morning it showed 80 !!!)
Is it expected

How much mileage generally my car should give, Any Idea
Should I check the car with an Audi service

Thanks in Advance