Cadillac 1994 Eldorado Owners Literature page 280

HTNDSHIELD 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 mix water with ready-to-use 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.
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.
Don't use radiator antifreeze in your windshield washer. It
can damage your washer system and paint.
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