Acura 2009 TSX Owner's Manual page 435

Clutch Fluid
Manual Transmission only
MAX
MIN
The fluid level should be between
the MIN and MAX marks on the side
of the reservoir. If it is not, add
brake fluid to bring it up to that level.
Use the same fluid specified for the
brake system.
A low fluid level can indicate a leak
in the clutch system. Have this
system inspected as soon as possible.
Brake and Clutch Fluid
429