Saab 2006 9-2 - Manual (Page 199)

Driving tips
8-3
8
– CONTINUED –
NOTE
Due to the expansion and contraction
of the metals used in the manufacture
of the exhaust system, you may hear a
crackling sound coming from the ex-
haust system for a short time after the
engine has been shut off. This sound is
normal.
Catalytic converter
Turbo models
Non-turbo models
The catalytic converter is installed in the
exhaust system. It serves as catalyst to
reduce HC, CO and NOx in exhaust gas-
es, thus providing cleaner exhaust.
To avoid damage to the catalytic convert-
er:
— Use only unleaded fuel. Even a small
amount of leaded fuel will damage the cat-
alytic converter.
— Never start the engine by pushing or
pulling the vehicle.
— Avoid racing the engine.
— Never turn off the ignition switch while
the vehicle is moving.
— Keep your engine tuned-up. If you feel
the engine running rough (misfiring, back-
firing or incomplete combustion), have
your vehicle checked and repaired by an
authorized Saab dealer.
— Do not apply undercoating or rust pre-
vention treatment to the heat shield of cat-
alytic converter and the exhaust system.
— If at any time you suspect that ex-
haust fumes are entering the vehi-
cle, have the problem checked
and corrected as soon as possi-
ble. If you must drive under these
conditions, drive only with all win-
dows fully open.
— Keep the trunk lid or rear liftgate
closed while driving to prevent ex-
haust gas from entering the vehi-
cle.
800232
800218
— Avoid fire hazards. Do not drive or
park the vehicle anywhere near
flammable materials (e.g. grass,
paper, rags or leaves), because
the catalytic converter operates at
very high temperatures.
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