135 Starting and driving
possible running problems) is to keep the
tank well filled.
Before the onset of freezing temperatures in
winter, it may be advisable to add gasoline
anti-freeze to the fuel a few times to dispel
any condensation in the system.
Opening the fuel filler flap in an emergency,
see page 126.
Recommended fuel:The engine in your Saab 9-5 is designed to
operate on unleaded gasoline that has an
octane rating of 87 or higher. Octane rating
is determined according to the formula:
where MON is the Motor Octane Number,
and RON is the Research Octane Number.
The average of these two values is the
octane rating of the gasoline as it appears
on the pump at a retail gas station. This
value is sometimes referred to as the
"Anti-Knock Index" (AKI) or the "Average
Octane Number" (AON).To avoid deposit formation on the fuel injec-
tors which can cause poor driveability, use
only quality gasolines that contain deter-
gents and corrosion inhibitors. Because
gasolines sold at retail gas stations vary in
their composition and quality, you should
switch to a different brand if you begin expe-
riencing driveability and/or hard starting
problems shortly after refueling your car. In
recent years, a variety of fuel additives and
alcohols or oxygenates have been blended
with gasoline. These types of gasolines may
be found in all parts of the United States and
Canada, but particularly in geographic
areas and cities that have high carbon mon-
oxide levels. Saab approves the use of such
"reformulated" gasolines in its products,
which help in reducing pollution from all
motor vehicles, provided that the following
blending percentages are met by such
fuels:
Up to 10% ethanol by volume, with corro-
sion inhibitors.
Up to 15% MTBE by volume (methyl ter-
tiary butyl ether).
Up to 5% methanol by volume, with an
equal amount of a suitable co-solvent and
added corrosion inhibitors.
Other, less common, fuel additives used by
some gasoline dealers are also acceptable,
provided that the resultant gasoline is not
more than 2.7% oxygen by weight.
Some Canadian and U.S. gasolines contain
an octane enhancing additive called meth-
lycyclopentadienyl manganese tricarbonyl
WARNING
Never use fuel for any purpose other
than as engine fuel.
Fuel is highly flammable and can
cause severe burns. Never use an
open flame in the vicinity of gasoline
and do not smoke when refuelling.
MON + RON
2
IB470
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136 Starting and driving(MMT). If such fuel is used, your emission
control system performance may deterio-
rate and the malfunction indicator lamp on
your instrument panel may turn on. If this
occurs, return to your authorized Saab
dealer for service.
However, these blended gasolines are reg-
ulated and should never exceed these rec-
ommended blend percentages and service
station operators should know if their gaso-
lines contain detergents and oxygenates,
and have been reformulated to reduce vehi-
cle emissions. Nevertheless, if you begin to
notice a problem with the way your car starts
or runs shortly after it has been refueled, try
a different brand of gasoline.
FuelUse the correct type of fuel. The fuel filler
cap is located in the right rear fender. Do not
lift the nozzle while filling is in progress. NOTEHigher concentrations of methanol than
listed above, or the use of methanol-
blended gasoline without suitable
co-solvents and corrosion inhibitors,
can damage your car’s fuel system,
leading to the need for repairs which are
not covered by Saab’s product warranty.
WARNING
Gasoline is highly flammable and can
cause severe burns. Never use an
exposed flame in the vicinity of gasoline.
Never smoke when filling the vehicle up
with gasoline.
NOTEThe engine control module (ECM) mon-
itoring the engine parameters also
stores fault codes.
Under certain circumstances, this may
cause constant illumination of the
“Engine malfunction” lamp , thus
indicating a fault that must be checked
by your Saab dealer.
NOTE: always observe the following two
measures:
Make sure that the fuel filler cap is
screwed on correctly before the
engine is started. Screw on the fuel
filler cap until you hear 3 distinct
clicks.
Avoid driving with the fuel low level
indicator illuminated. The symbol
illuminates when less than approxi-
mately 2 gallons (8 litres) of fuel
remains in the tank.
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150 Starting and drivingIf idling, it will take much longer before the
engine becomes hot. Engine wear is
greatest during this warming-up phase.
Therefore drive away as soon as possible
after the engine is started and avoid high
revving.
Driving in a low gear results in higher fuel
consumption than in a high gear because
of the higher engine speed for a given
road speed. Always change up to a higher
gear as soon as traffic conditions allow
and use the highest gear as much as pos-
sible.
Check the air pressure in the tires once a
month. Incorrect pressures increase tire
wear. It is better to have slightly higher
pressure than lower.
Check fuel consumption regularly.
Increased consumption can indicate that
something is wrong and that the car
needs to be checked by an authorized
Saab dealer.
Practical trials on the roads have demon-
strated that substantial savings in fuel con-
sumption can be made if the above advice
is heeded.
Road conditions Wet roads increase fuel consumption, as do
unpaved roads and driving in hilly country
(the amount of fuel saved driving downhill is
less than the additional amount required to
climb the hill). Engine block heater (standard
equipment in Canada, accessory in
U.S.)The following are just some of the benefits
to the car and the environment of using an
engine block heater:
Lower fuel consumption.
Reduced wear on the engine.
Inside of car warms up faster.
Exhaust emissions substantially reduced
over short runs.
The engine heater is effective at outside
temperatures up to +15-20°C. The warmer
it is outside, the shorter the time the engine
heater needs to be connected. Longer than
1.5 hours is unnecessary.
If the car is equipped with a removable,
electrical cabin heater that is not in use, this
should be stored in the luggage compart-
ment.
Driving in winterBefore starting a journey in cold weather,
check that the wiper blades have not
become frozen to the glass. Brush any snow
away from the air intake for the heater
system (opening between hood and wind-
shield).
Periodically during the winter, add gasoline
anti-freeze to the fuel to dispel any conden-
sation in the fuel tank which could freeze
and cause problems in the system. Keep
the tank well filled to reduce the risk of con-
densation forming.
If the car is parked outside in freezing
weather, fuel additives (gasoline
anti-freeze) will not do any good as any con-
densation in the fuel tank will freeze. Con-
densation is caused by changes in the out-
door temperature or by the car being parked
alternately in a garage and outside.
It is particularly important when the roads
are slippery that the brakes and tires be in
good condition.
The car is equipped with tires designed to
provide optimum grip on both wet and dry
roads, although this has been achieved at
the expense of somewhat reduced grip on
snow and ice. For regular driving on snow
and ice, we therefore recommend that
winter (snow) tires be fitted.
Winter (snow) tires, particularly studded
tires (where use is legally permitted), gener-
ally make driving safer on snow and ice.
If winter tires are fitted, the same type must
be fitted on all wheels. Your Saab dealer will
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206 Car care and technical informationFlat spottingAll tires get hot, especially on long journeys
or when the car is driven hard. After the car
has been parked with hot tires and the tires
have cooled down, a flat spot can appear in
the tire, where it is in contact with the
ground. The same can occur if the car has
not been moved for a long time.
Flat spots can give rise to vibration that can
be felt through the steering wheel, similar to
that experienced when the wheels need bal-
ancing. Flat spots of this type disappear
once the tires get hot again, usually after
10–15 miles (20–25 km) of driving at cruis-
ing speed.
Air conditioning
(A/C system)
Fault diagnosis If a fault occurs in the A/C system, there are
a number of checks you can perform your-
self. If the fault persists, however, have the
system checked by an authorized Saab
dealer.
Important!
When the A/C system is running, the intake
air is dehumidified, and the resultant con-
densation is drained off through two outlets
underneath the floor of the car in the vicinity
of the front doors. It is therefore perfectly
normal for water to be seen dripping from
these outlets when the car is parked. The
warmer the ambient air and the higher the
humidity, the greater will be the amount of
condensation formed.
Inadequate cooling:
a Make sure that the temperature and
air-distribution controls are in the
appropriate settings.
b Check that the condenser (forward of
the radiator) has not become clogged
with dirt and insects.
c Make sure that the drive belt for the com-
pressor is not slipping.
d Check the fuses for the ventilation fans
and compressor.
NOTE The A/C system is designed for use
with R134a refrigerant.
Refrigerant handling requires special
equipment and special procedures for
charging and draining the system.
All repairs and adjustments on the A/C
system must be carried out by a Saab
dealer authorized for this kind of work.
Never mix R134a and R12 refriger-
ants.
WARNING
The A/C system is pressurized. Do not
break any connections or undo A/C
system components.
Escaping gas can cause blindness or
other injury.
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229 Specifications
Engine oilOil specification
:
Oil for gasoline engines is classified in accordance with the API
standard (American Petroleum Institute) into the grade classes
SH (since 1993) and SJ (since 1996). The SJ class fulfils more
stringent requirements and has a lower level of phosphorous.
These grade classes are most often combined with the corre-
sponding classes for diesel engines. The class designations for
diesel engines begin with the letter “C” (Commercial). For exam-
ple, a grade combination suitable for both types of engine could
be API SH/CD or SJ/CF.
Under ACEA nomenclature, oils are divided into Class A for gas-
oline engines and Class B for diesel-engined passenger cars.
There is a further class for heavy diesel engines. Each class is
divided into three grades: 1, 2 and 3, where grades 2 and 3 nor-
mally encompass semi and fully-synthetic oils.
In the same way as in the API system, gasoline and diesel
engine specifications are combined for products that can be
used in both types of engine. For example, a grade designation
could be ACEA A2/B2 or ACEA A3/B3.
To afford Saab engines the best protection with regard to lubri-
cation, the ability to dissolve residues and the neutralization of
combustion products, we recommend the following oil grades:
API SH/CD/CF or SJ/CD/CF.
ACEA A2/B2 or A3/B3.
These oils contain the additives required for the engine to
function well. We advise against the use of further addi-
tives.
Viscosity
:
The viscosity of oil is classified according to the SAE standard.
Nowadays, multigrade oils are always used in car engines. The
properties of these oils facilitate starting the car in cold weather
but mean that the oil is also viscous enough to coat all moving
parts under high pressures and with high outside air tempera-
tures.
Multigrade oils are graded with two viscosities, e.g. 10W-30,
where the 10W meets certain viscosity requirements at -20°C,
while the 30 fulfils requirements at a temperature of 100°C.
Basic recommendations for Saab engines:
SAE 10W-30 or 10W-40.
SAE 5W-30 can also be recommended but in which case the oil
must be semi of fully-synthetic and fulfil ACEA grade require-
ments A3/B3.
Oils which are less viscous, such as 0W/-40/50 are becoming
more common and may be used. However, the oil must be
fully-synthetic, of a well known brand, and fulfil ACEA grade
requirements A3/B3.
This viscosity makes starting in cold weather easier.
Oil capacity incl. filter (on changing):
4-cylinder ________________________ 4.1 qts (4.0 litres)
6-cylinder ________________________ 4.6 qts (4.5 litres)
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232 SpecificationsAutomatic transmission Suspension
SteeringType ____________________________ Electronically con-
trolled 4-speed,
fully automatic with
hydraulic torque
converter, planetary
gear set and inte-
gral final drive
Lock-up function in
selector positions 3
and 4
Selector-lever positions ______________ P R N D 3 2 1
Transmission-fluid capacity, dry transmis-
sion (incl. torque converter and oil cooler) 7.5 qts (7 litres)
If fluid change required, approximately
3.5 litres can be drained through the drain
plug in the transmission casing
Transmission fluid __________________ Texaco Texamatic
Dexron III (mineral
oil based)
Clutch type _______________________ Hydraulic plate
clutches, brake
bands and one-way
couplings
Speed (mph / km/h) at 1000 rpm in 4th gear:
4- and 6-cylinder _________________ 29 / 46–47Spring type, front and rear ____________ Coil springs
Maximum deflection of springs:
Front ___________________________ 7.09 in (180 mm)
Rear ___________________________ 7.87 in (200 mm)
Dampers, front and rear ______________ Gas-filled dampers
Steering __________________________ Power-assisted
steering of
rack-and-pinion
type; telescopic
steering-column
shaft with universal
joints
Number of turns, lock to lock ___________ 2,9
Power-steering fluid _________________ Power-steering
fluid CHF 11S
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