Opel Automobile Owner's Manual page 209

Engine Tyres
185/60 R15
all Temporary spare wheel 420/4.2
Only permitted as winter tyres
7)
Comfort with up to
3 people
front
[kPa/bar]
([psi])
260/2.6
7)
(38)
(61)
ECO with up to 3 people
rear front
[kPa/bar] [kPa/bar]
([psi]) ([psi])
220/2.2 270/2.7 (39) 250/2.5 (36) 270/2.7
(32)
420/4.2 –
(61)
Technical data
With full load
6)
rear front
[kPa/bar] [kPa/bar]
([psi]) ([psi])
(39)
– 420/4.2
(61)
209
rear
[kPa/bar]
([psi])
320/3.2
(46)
420/4.2
(61)