Owner's Manual
Page 116
... 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. Have your vehicle's transmission fluid yourself. Volvo recommends premium for best performance, but using premium 91 ... with hot surfaces, do not inspect your vehicle's transmission fluid level inspected by a qualified Volvo service technician. 125 06 Starting and driving Fuel requirements Octane rating Volvo engines are designed to fully utilize your engine's capacity, and for the smoothest possible operation....
... 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. Have your vehicle's transmission fluid yourself. Volvo recommends premium for best performance, but using premium 91 ... with hot surfaces, do not inspect your vehicle's transmission fluid level inspected by a qualified Volvo service technician. 125 06 Starting and driving Fuel requirements Octane rating Volvo engines are designed to fully utilize your engine's capacity, and for the smoothest possible operation....