NO!Yes, CAFE.
The EPA ruled that carmakers can only recommend the oil viscosity that was used for the fuel economy test.
Owner's manuals for other parts of the world still include the variety of viscosities vs climate.
ACEA A3 oils are minimum HTHS 3.5cP which means they are NOT energy conserving oils.
He already uses PPE 5W40. It carries most stringent approvals like BMW LL01, MB229.5, Porsche A40 (that approval includes Nordschleife track testing), VW 502.00. That oil is first fill in Ferrari. There is no 20W50 oil on par that oil.
Similar oil to this one are Castrol Edge 0W40, Mobil1 0W40FS.