Opel ASTRA Owner's Manual page 314

312 Technical data
3-door hatchback
Engine Tyres
A17DTS, 225/55 R17,
A17DTC
235/45 R19, 11)
235/50 R18,
11)
235/55 R17, 11)
245/40 R20, 11)
245/45 R18
12)
A16XHT, 225/55 R17,
Z20DTJ,
235/45 R19, 11)
A20DTH,
235/50 R18, 11)
A20DTR
235/55 R17,
11)
245/40 R20, 11)
245/45 R18 12)
Not permitted with tyre chains.
11)
Only use special snow chains. We recommend your workshop.
12)
Comfort with up to 3 people ECO with up to 3 people
front rear
[kPa/bar] [kPa/bar]
([psi]) ([psi])
210/2.1 (30) 210/2.1 (30) 260/2.6 (38) 260/2.6 (38) 220/2.2 (32) 260/2.6 (38)
230/2.3 (33) 230/2.3 (33) 270/2.7 (39) 270/2.7 (39) 240/2.4 (35) 280/2.8 (41)
front rear
[kPa/bar] [kPa/bar]
([psi]) ([psi])
With full load
front rear
[kPa/bar] [kPa/bar]
([psi]) ([psi])