Subaru 2004 Forester X - Manual (Page 282)

8-3
Driving tips
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Engine exhaust gas (Carbon monox-
ide)
Never inhale engine exhaust gas. Engine ex-
haust gas contains carbon monoxide, a color-
less and odorless gas which is dangerous, or
even lethal, if inhaled.
Always properly maintain the engine exhaust
system to prevent engine exhaust gas from en-
tering the vehicle.
Never run the engine in a closed space, such
as a garage, except for the brief time needed to
drive the vehicle in or out of it.
Avoid remaining in a parked vehicle for a
lengthy time while the engine is running. If that
is unavoidable, then use the ventilation fan to
force fresh air into the vehicle.
Always keep the front ventilator inlet grille
free from snow, leaves or other obstructions to
ensure that the ventilation system always
works properly.
If at any time you suspect that exhaust fumes
are entering the vehicle, have the problem
checked and corrected as soon as possible. If
you must drive under these conditions, drive
only with all windows fully open.
Keep the rear gate closed while driving to
prevent exhaust gas from entering the vehicle.
NOTE
Due to the expansion and contraction of the met-
als used in the manufacture of the exhaust sys-
tem, you may hear a crackling sound coming from
the exhaust system for a short time after the en-
gine has been shut off. This sound is normal.