BMW R 850 R Comfort Maintenance Instruction page 63

Gear oil
Capacity
Gearbox
Rear-wheel drive
(disassembly)
Viscosity class
Type of fuel
Fuel tank capacity
Fuels and lubricants
Brand-name hypoid gear oil,
API class GL 5
approx. 0.8 l
(to bottom edge of filler neck)
approx. 0.25 l
(to bottom edge of filler plug)
EPX 90, alternatively SAE 90 API
Super (premium) unleaded fuel to
DIN 51 607 standard, minimum
octane number 95 (RON) or
85 (MON)
17.6 l
including approx. 5 l reserve
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