From page 398 of the owner’s manual
You must only use unleaded gasoline in your vehicle.
Select premium unleaded gasoline
with an octane rating of 91
(Research Octane Number 96) or
higher required for optimum
engine performance and fuel economy. If the octane rating is less than
91,damage to the engine may occur
and may void the vehicle warranty
The answer to your question is; Yes, premium fuel is required with this vehicle.