Wheels And Tyres; Tyre Pressure; Tyre Designations; Winter Tyres - Opel Automobile Owner's Manual

122 Vehicle care

Wheels and tyres

Tyre condition, wheel condition
Drive over edges slowly and at right
angles if possible. Driving over sharp
edges can cause tyre and wheel
damage. Do not trap tyres on the kerb
when parking.
Regularly check the wheels for
damage. Seek the assistance of
a workshop in the event of damage or
unusual wear.
Tyres
Factory-fitted tyres are matched to
the chassis and offer optimum driving
comfort and safety.

Winter tyres

Winter tyres improve driving safety at
temperatures below 7 °C and should
therefore be fitted on all wheels.
In accordance with country-specific
regulations, a notice indicating the
maximum permissible speed for the
tyres must be affixed within the
driver's field of vision.

Tyre designations

E.g. 195/65 R 16 C 88 Q
195 = Tyre width, mm
65 = Cross-section ratio (tyre
height to tyre width), %
R = Belt type: Radial
RF = Type: RunFlat
16 = Wheel diameter, inches
C = Cargo or commercial use
88 = Load index e.g. 88 is
equivalent to 567 kg
Q = Speed code letter
Speed code letter:
Q = up to 160 km/h (100 mph)
S = up to 180 km/h (112 mph)
T = up to 190 km/h (118 mph)
H = up to 210 km/h (130 mph)
V = up to 240 km/h (150 mph)
W = up to 270 km/h (168 mph)

Tyre pressure

Check the pressure of cold tyres at
least every 14 days and before any
long journey. Do not forget the spare
wheel.
Tyre pressures 3 156.
The tyre pressure data refers to cold
tyres. It applies to summer and winter
tyres.
Always inflate the spare tyre to the
pressure specified for full load.
Incorrect tyre pressures will impair
safety, vehicle handling, comfort and
fuel economy and will increase tyre
wear.
9 Warning
If the pressure is too low, this can
result in considerable tyre warm-
up and internal damage, leading to
tread separation and even to tyre
blow-out at high speeds.