Owner's Manual
Page 116
Have 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 fill the tank more than once before a difference in hot weather, ...towing a trailer, or driving for extended periods at higher altitudes than normal, it may be necessary 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 level inspected by a qualified Volvo service technician. 125 06 Starting and driving Fuel requirements Octane rating Volvo engines are designed to fill the tank more than once before a difference in hot weather, ...towing a trailer, or driving for extended periods at higher altitudes than normal, it may be necessary to achieve rated horsepower, torque, and fuel economy performance using 87 octane or above will not affect engine reliability...