The type of gas required in a Volvo XC60 depends on the powertrain yours is equipped with, but overall, filling your Volvo XC60 with premium 91 octane gasoline or higher is required across most model years and powertrains. The T5, T6, B5, and B6 powertrains will all require the use of premium fuel, but they’re also primed for great fuel efficiency. For example, the latest Volvo XC60 with the B5 FWD powertrain delivers an EPA-estimated 23/30 MPG (City/Highway),1 and used models like a 2019 Volvo XC60 can deliver up to an EPA-estimated 22/29 MPG (City/Highway).1