Oil specification

Vauxhall Astra

1.4 B14XFT · 2015–2021 · Petrol

Viscosity grade

5W-30

dexos2 5W-30, GM's own specification covering both petrol and diesel across this generation.

Oil capacity

4.5 litres

Including filter change. Fill to the dipstick, not to the litre.

Service interval

20,000 miles or 12 months

Whichever comes first.

Required approvals — the oil must carry at least one

dexos2

ACEA C3

Look for the dexos2 licence number printed on the bottle. Oils claiming to 'meet' dexos2 without a licence are not approved.

Oils that meet this specification

Every product listed carries the approvals above. Prices indicative.

All products →

Sponsored

Castrol

Edge Professional Titanium FST 5W-30

5 litres

£46.99

Halfords

Millers Oils

EE Longlife Nanodrive 5W-30

5 litres

£39.50

Opie Oils

Mobil

Mobil 1 ESP Formula 5W-30

4 litres

£42.00

Eurocarparts

Sponsored placements are marked. Placement never changes which specification we show you.

Next steps

When should I change it?

How your driving pattern changes the interval.

What does this approval mean?

Read the approval codes on the back label.

How do I change it myself?

Step-by-step guides and common mistakes.

Specification sourced from manufacturer service documentation for this engine code. Where a vehicle has been modified, rebuilt or is running an extended interval on a non-standard oil, check the service book before topping up. How we source this