Windshield Washer Fluid - GMC 1994 Yukon Owner's Manual

Hydro-Boost Brake System (Hydraulic Pump)
The power steering pump is also used as the Hydro-boost pump. Refer to
"Power Steering System" in this section when checking fluid level or
adding fluid.
Windshield Washer Fluid
To Add
Open the cap labeled
"WASHER
FLUID
ONLY" Add washer
fluid until the bottle is
full.
NOTICE:
When using concentrated washer fluid, follow the
manufacturer's instructions for adding water.
Don't miri water with ready-twuse washer fluid. Water can
cause the solution to freeze and damage your washer fluid
tank and other parts of the washer system. Also, water
doesn't clean as well as washer fluid.
0
Fill your washer fluid tank only
3/4
full when it's very cold.
This allows for expansion, which could damage the tank if it is
completely full.
0
Don't use radiator antifreeze in your windshield washer. It
can damage your washer system and paint.