Oldsmobile 2002 Aurora - Manual (Page 287)

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Cooling System Pressure Cap
The cooling system pressure cap is located on the
surge tank.
NOTICE:
Your cooling system pressure cap is a 18 psi
(124 kPa) pressure
- type cap and must be tightly
installed to prevent coolant loss and possible
engine damage from overheating.
Power Steering Fluid
The power steering fluid
reservoir is near the center
of the engine compartment
on the passenger’s side of
the vehicle. See “Engine
Compartment Overview” in
the Index for more
information on location.