Modified turbocharger oil circuit for increased pressure at the turbo and faster oil delivery (topspeed.com)
While the dual clutch, mechatronic module and oil pump are supplied by their own oil circuit with seven liters (1.85 US gal) of automatic transmission fluid (ATF) oil, the wheel sets and the center and front - axle differential are lubricated with about 4.5 liters (1.19 US gal) of hypoid gear oil. (topspeed.com)
On some / many motorbikes there is one single oil circuit where both engine, gearbox and the clutch get feed with the same oil. (mechanics.stackexchange.com)