Fuel gauge never reads full
I recently purchased a 2010 335d. I saw that when I first bought the car the fuel gauge was only 7/8 full after the dealer filled her up. I have refilled the car 2 additional times and it registered 7/8 full and today 3/4 full. All were at different gas stations. I do think the tank is full I have put close to 17 gal in.
Is this normal? Should I expect different levels of filling at different diesel pumps? Is this a gauge problem?
'14 328d base. Alpine white/black. Moonroof. Heated seats.