u/Impressive-Basket-57

When I first started filling up it would get up to 330 miles for a full tank. Now it's 200 something, usually around 270/280.

But the tank still depletes the same amount of fuel by the end of the week. It drives great.

there was one time I went to fill up but the guage sensor didn't recognize that the tank was now full. When I turned the car on right after filling it up it read the same as before I filled it up.

I drove and parked and went about my business. When I turned it on again it showed full.

Does anyone have any insight?

I'm a fairly new driver and this is my first car.