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Tires/Wheels
The original equipment tires and wheel rims on
your Porsche comply with all applicable Federal
Motor Vehicle Safety Standards.
For your safety remember the following:
– Wheel rims and wheel bolts are matched to fit
your Porsche.
– If you intend to use other than original equip-
ment wheels, be sure th at they conform to
Porsche spec ifications for your model. Only
tires w ith the same make and with the same
specification code (e.g. “N0”, “N1”...) can be
mounted.
– The use of wheel rims and wheel bolts that
do not meet specifications of the original
factory installed equipment will affect the safe
operati on of your vehi cle.
– Before you plan on exchanging wheels, or
snow tires already mounted on the wheel rims,
consult your authorized Porsche dealer. Your
dealer has the technical information necessary
to advise you which wheel rims and wheel
bolts are com patible with the original factory
installations.
Danger !
Risk of loss of control and serious persona l
injury or death.
If while driving, your vehicle experiences a
sudden vibration or ride disturbance, and/or
you suspect that possible dama ge to your
tires or vehicle has occurred, you shou ld
immediately reduce your speed without
excessive use of the brakes.
Stop the vehicle as soon as possible, and
inspect the tires. I f you canno t deter mine the
cause for the disturbance, have your vehicle
towed to the near- est Porsche or tire dealer to
have your vehicle or tire(s) inspected.
Continuing to operate the vehicle without
correction could result in a loss of control and
serious personal injury.
Example
Uniform Tire Quality Gradin g
Quality grades can be found where applicable
on the tire sidewall between tread shoulder and
maximum section width.
All passenger car tires mus t conform to Federal
Safety Requirements in addition to these grades.
Treadwea r
The treadwear grade is a comparative rating based
on the wear rate of the tire when tested under
controlled conditions on a specific government
test course. For example, a tire graded 150 would
Practical Tips, Emergency Service
237
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