Owner`s manual

ManualsBrandsBuick ManualsAutomotive1998 Riviera

How

to Add Coolant to

the

Radiator

1.

You can remove the

radiator pressure cap

when the

cooling

system, including the

radiator pressure cap

and

upper radiator hose, is

no longer hot. Turn the

pressure cap slowly

counterclockwise until it

first stops. (Don’t press

down while turning the

pressure cap.)

I

If

you hear a hiss, wait for that to stop.

A

hiss means

there

is

still some pressure left.

2.

Then keep turning the

pressure cap, hut now

push down as you

turn

it. Remove the

pressure cap.

3.

Fill the radiator with the

proper

DEX-COOL@

coolant mixture, up to

the base

of

the filler

neck. (See “Engine

Coolant” in the

Index

for more information

about the proper

coolant mixture.)