Tyre Pressure; Tyre Designations - Opel Automobile Owner's Manual

Tyres of size 245/45 R 18,
245/40 R 19 and 245/35 R 20 must
not be used as winter tyres.
In accordance with country-specific
regulations, affix the speed sticker in
the driver's field of view.

Tyre designations

E.g. 215/60 R 16 95 H
215 = Tyre width, mm
60 = Cross-section ratio (tyre
height to tyre width), %
R = Belt type: Radial
RF = Type: RunFlat
16 = Wheel diameter, inches
95 = Load index e.g. 95 is
equivalent to 690 kg
H = 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. This also applies to vehicles
with tyre pressure monitoring system.
Unscrew the valve cap.
On vehicles with tyre pressure
monitoring system and metal tyre
valve shafts, screw the adapter onto
the valve. The adapter is located in
the glovebox.
Tyre pressure 3 215 and on the label
on the front left door frame.
Vehicle care
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.
The ECO tyre pressure serves to
achieve the smallest amount of fuel
consumption possible.
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.
If the tyre pressure shall be reduced
or increased on a vehicle with tyre
pressure monitoring system, switch
off ignition.
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