FWIW, our 2014 XC60 3.2 has the same A5/B5 requirement. Our local Volvo dealers in Savannah & Hilton Head use Castrol Edge Professional - a minor dye-enhanced tweak of Castrol Edge Gold Bottle for the Drive-E, 3.0 (T6) & 3.2 engines. I will probably go with Pennzoil Platinum or Pennzoil Ultra Platinum when the free oil changes are used up. Certainly no complaints with Castrol Edge, however.