The 2015 model I had the same problem you described at 12.000 miles. Dealer changed the fuel filter and put new injectors in. After that I became a believer in using POWER SERVICE FUEL SUPLEMENT and never had any more fuel problems. Winter comes in white bottles and summer comes in silver bottles. 1 quart is good for 100 gallons.I also use it in my tractor after my fuel jelled up on the tractor. My ecodiesel knocked on a cold morning so I traded it at 22,000 miles and never looked back.