We just bought a new qx60 hybrid we can hear the gas (we think) sloshing around in the tank it is quit loud the is the first tank of gas we have put in it. It is about half full as anyone had this happen to them? It is at the dealer now 2 days so far it only gets about 17 MPG they are trying to figure that out also. Not what we hoped for when we bought this car so far not so good