Although a lot of information tends to get buried in the text of an Owner’s Manual, almost all manufacturers list the really vital information on the inside of the back cover, where it can be easily found. That really vital information includes things like the octane that is required, as well as the grade and viscosity of the motor oil that is needed. I would be very surprised if the OP’s Owner’s Manual did not list the octane requirement on the inside back cover.
All of that being said, if it is a turbo-charged engine, it almost surely calls for high-octane (premium) gas.