Generally speaking, yes! The only problem with mixing oils is that the quality of the better oil is diluted by the lesser one. Is it okay to mix oils?. Ester based oils are the top end of oil technology and give the best protection available.
Mahle Interior Heat Exchanger AH321000S Fits Mercedes-Benz - OE Quality
Mahle Interior Heat Exchanger AH113000S Fits Mercedes-Benz - OE Quality
MAHLE Interior Heat Exchanger Brazed Cooling Fins Fits Alpina BMW Rolls-Royce
MAHLE Interior Heat Exchanger Brazed Cooling Fins Fits Audi Proton Seat Skoda VW
Volkswagen Crafter 2F Mk1 Interior Heat Exchanger 2E0819017C New OEM
VW Golf 5K MK6 Interior Heat Exchanger LHD 3C0819031A New OEM