Gas gauge is reading empty when tank is full. Took it to a mechanic and he said it was the sending unit and replaced it. 2 weeks later the same thing happened so I went back and he said he is calling the Nissan dealer because he now believes there was an upgrade on the sending units. This is such bulls***.

Pretty simple. I filled up my tank last night then drove home. Today I only had half tank when I got in the car. I drove 15 miles and now I'm down to 43 miles.