Chrysler 2008 300 SRT - Manual (Page 148)

Adding Washer Fluid
The headlight washer and windshield washer share the
same fluid reservoir. The reservoir is located in the front
of the engine compartment. Be sure to check the fluid
level in the reservoir at regular intervals. Fill the reservoir
with windshield washer solvent (not radiator antifreeze)
and operate the system for a few seconds to flush out the
residual water.
Washer Fluid Reservoir
146 UNDERSTANDING THE FEATURES OF YOUR VEHICLE