Shimano ALFINE Inter-11 Dealer's Manual page 42

MAINTENANCE
For internal 8-speed (oil maintenance kit: Y00298010)
4
5
6
Remove the internal unit from the oil.
Let the excess oil drain off for
approximately 60 seconds.
After lubrication is complete, reassemble
by following the usual procedure.
42
TECH TIPS
<Maintenance oil>
•
The maintenance oil is reusable.
Refill it as needed.
•
Store it with the lid closed after use.