It has a recall for gas tank. After I get the car back it seems to get less gas mileage (30 instead of 35 for highway). Also the gauge went down and never came up after I drove into a hard right turn on ramp at high speed (40-80mph depends on how fast I can go and come out alive lol).

It also make some noise from either brake or suspensions. Dealer try to adjust the rear breakes but it does not go away.

I would appreciate if anyone will give suggestions for those problem.

Go back to the dealer and tell them, if that doesn't work go to another dealer or call Nissan.