Opel INSIGNIA Owner's Manual page 310

308 Technical data
Engine Tyres
B28NER 235/45 R18,
245/40 R19,
255/35 R20
All Temporary spare
wheel
125/80 R16
125/70 R17
Comfort with up to
3 people
front rear
[kPa/bar] [kPa/bar]
([psi]) ([psi])
270/2.7 (39) 250/2.5 (36) 310/3.1 (45) 300/3.0 (43) 280/2.8
420/4.2 (61) 420/4.2 (61) –
ECO with up to 3 people
front rear
[kPa/bar] [kPa/bar]
([psi]) ([psi])
–
With full load
front rear
[kPa/bar] [kPa/bar]
([psi]) ([psi])
300/3.0
(41) (43)
420/4.2 420/4.2
(61) (61)