BMW R 850 R Comfort Maintenance Instruction page 64

Fuels and lubricants
Bearing lubrication and
lubricating points
3
62
Brake fluid
Brand-name anti-friction bearing
grease,
usable temperature range
–25 °C ...+120 °C,
drip point 190 °C,
high corrosion protection, good
resistance to water and oxidation;
e.g. Shell Retinax EP2
DOT 4
We recommend BMW brake fluids
e
Attention:
Use only new brake fluid to DOT 4
specification.