Opel ASTRA 2017 Owner's Manual page 285

International service schedule
Required engine oil quality
Engine oil quality
dexos1 Gen2
dexos2
In case dexos quality is unavailable you may use the oil qualities listed below:
Engine oil quality
ACEA A3/B4
ACEA C3
Engine oil viscosity grades
Ambient temperature
down to -25 °C
All countries with international service interval 3 276
Petrol engines
(including CNG, LPG, E85)
✔
–
All countries with international service interval 3 276
Petrol engines
(including CNG, LPG, E85)
All countries with international service interval 3 276
Petrol and diesel engines
SAE 0W-30 or SAE 0W-40
SAE 5W-30 or SAE 5W-40
–
–
Technical data 283
Diesel engines
–
✔
Diesel engines
✔
✔