Owner's Manual
Page 116
... (91 or higher) or to change gasoline brands to achieve rated horsepower, torque, and fuel economy performance using 87 octane or above will not affect engine reliability. In demanding driving conditions, such as operating the vehicle in engine operation is noticeable. Volvo recommends premium for the smoothest possible operation. Deposit control gasoline (detergent...
... (91 or higher) or to change gasoline brands to achieve rated horsepower, torque, and fuel economy performance using 87 octane or above will not affect engine reliability. In demanding driving conditions, such as operating the vehicle in engine operation is noticeable. Volvo recommends premium for the smoothest possible operation. Deposit control gasoline (detergent...