Opel Corsa Owner's Manual page 177

Tyre designations
Meanings:
e.g. 185/65 R 15 88 T
185 = Tyre width in mm
65 = Cross-section ratio
(tyre height to tyre width in %)
R = Belt type Radial
RF = Type: Run-flat
15 = Rim diameter in inches
88 = Load-bearing capacity code
e.g.: 88 corresponds to 567 kg
T = Speed code letter:
Speed code letters:
Q = Up to 160 km/h
S = Up to 180 km/h
T = Up to 190 km/h
H = Up to 210 km/h
V = Up to 240 km/h
W = Up to 270 km/h
Run-flat tyres (RFT) 3
Run-flat tyres have reinforced, self-
supporting sidewalls, which ensure that the
tyres always have a certain amount of
driveability, even when there is no pressure.
Run-flat tyres are permitted only in the
Plus
case of vehicles with ESP® 3 and a
deflation detection system.
9 Warning
Even the tyre pressure of run-flat tyres
must be checked regularly.
Check tyre pressures at least every
14 days and prior to any long journey;
the tyres should be checked when cold.
Depending on the tyre manufacturer, run-
flat tyres can be identified from a marking
on the tyre wall, e.g. ROF = RunonFlat for
Dunlop or SSR = Self Supporting Runflat
Tyre for Continental.
Run-flat tyres can be used only in
combination with the alloy wheels issued
by Opel: this also applies to winter tyres.
Driving and operation 171
Driving with a damaged tyre
The deflation of a tyre is displayed via the
deflation detection system 3.
If a tyre has no pressure, continued driving
is possible
z at a speed of max. 80 km/h,
z up to a distance of 80 km.
9 Warning
When driving with a flat tyre, do not
exceed a speed of 80 km/h or a distance
of 80 km.
The vehicle will be more difficult to steer
and handle and the braking distance
will be longer.
Adapt driving style and speed to the
conditions at hand.
Do not use a tyre repair kit.
Deflation detection system 3 3 164.
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