Wheels And Tires - Saab 900 1983 Owner's Manual

D. Wheels and Tires.
A car's tires and wheels are components vital to
motoring safety. The tubeless radial tires and
wheels supplied with the Saab 900 have been
specially selected for the different models and
are major factors contributing to its exceptional
roadholdlng and stability. Consult your Saab
dealer before fitting nonstandard wheels or
tires. See tire and wheel applications chart ,
Section liE, Specifications.
Tire Pressures
Check tire pressures regularly.
Adjust tire pressures to suit the load and speed
normal for the car. See tire pressure table, Spec·
Iflcations Section. The recommended pres·
sures are for tires when cold. Never reduce the
pressure when the tire Is warm . If tire pressures
are checked when the tires are warm then the
pressure should only be Increased. Incorrect
tires. See tire and wheel applications chart,
Section liE, Specifications.
NOTE! Do not forget to adjust the tire
pressures If the load or speed Is radically
altered. Add 1.5 psi to light load value If
the car has air conditioning .
Wear Indicators
The tires are fitted with wear indlcators-a
transverse strip (approx. 12mm, 0.5 in., wide)
without a pattern appears when 1.6 mm (0.06 In .)
of the tread remains. When this strip Is visible
the tire should be replaced.
Winter tires
The 185/65 SR15 standard steel·beited radial ply
tires, if they have at least half their original
tread depth, are also suitable for winter use in
moderate climates where snow and ice are not
too severe. The 900 Turbo 3·door model is
equipped with wide profile tires which have
been developed to give the greatest possible
roadholding and stability under both wet and
dry driving conditions with the result that the
tread compounds and designs are not suitable
for use on ice and snow. We therefore recom·
mend winter tires or "all weather" tires for this
model when driving on snow or ice. (See Section
10,
Winter Driving.)
Tire Rotation
The front·wheel drive causes the front tires to
wear more than the rear tires. If It Is desired to
have the tires wear evenly, they should be ex·
changed front to rear after a certain period of
driving so that the least worn tires are at the
front. By switching the tires in this manner, the
service life of all four tires will remain approxl·
mately equal. Make sure that the tires are al·
ways rotated In the same direction-the left
front wheel should thus change place with the
left rear whee l. Do not change radial tires from
side to side.
WHEEL CHANGING
The tool kit, jack and a compact type spare
wheel are stored under a cover in the floor of the
rear part of the luggage compartment.
To jack up the car, install the jack In one of the
jacking points (front or rear) located underneath
the sill beams (see illustration).
If a garage jack is used, the lifting heads must
be located under the reinforced parts of the
underbody.
WARNIN G! Never crawl under the car
when It Is Jacked up.
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