Honda Rebel 2017 Owner's Manual page 52

Maintenance Fundamentals
*1. The JASO T 903 standard is an index for engine
oils for 4-stroke motorcycle engines. There are
two classes: MA and MB. For example, the
following label shows the MA classification.
*2. The SAE standard grades oils by their viscosity.
*3. The API classification specifies the quality and
performance rating of engine oils. Use SG or
higher oils, excluding oils marked as "Energy
Conserving" or "Resource Conserving" on the
circular API service symbol.
Not recommended Recommended
48
Oil code
Oil classification
Brake Fluid
Do not add or replace brake fluid, except in an
emergency. Use only fresh brake fluid from a
sealed container. If you do add fluid, have the
brake system serviced by your dealer as soon as
possible.
NOTICE
Brake fluid can damage plastic and painted surfaces.
Wipe up spills immediately and wash thoroughly.
Recommended brake fluid:
Honda DOT 4 Brake Fluid or equivalent