Engine, Exhaust, Drivetrain, ECU Faults and Fixes
2017 XE X760 with 8-Speed Auto 8HP70/45 - RWD
Um..... Here is picture from Topix. 8.5 litres??????????? Surely not!
WARNING: There are specific details and testing to ensure it is refilled correctly to the correct level (and torque settings and tools required) according to the manual so be careful if your attempting this yourself (not that you would if you have a 2017 model anyway as per OP question).