YES! Leave the fuel low...if it is the fuel pump filters clogged as mine were, the symptoms will vanish with a full tank and the dealer will shrug it off. Actually I doubt there is anything wrong with the pump itself...just one or all of the three in tank filters clogged. When the warranty is up you'll be stuck doing it yourself...here's a sort of "how to" and you'll save lots o' $$$$$!
Returnless Fuel Pump Exposed! ...Ed