Oil specification

Ford Fiesta

1.0 EcoBoost (M1JU) · 2017–2023 · Petrol

Viscosity grade

5W-20

Ford specify a thin 5W-20 for the EcoBoost. A 5W-30 will run but raises pressure in the variable-timing system and the wet belt.

Oil capacity

4.1 litres

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

Service interval

12,500 miles or 12 months

Whichever comes first.

Required approvals — the oil must carry at least one

Ford WSS-M2C948-B

ACEA C2

API SN

WSS-M2C948-B is a Ford-specific approval covering the wet timing belt used on this engine. A generic 5W-20 without it is not a substitute.

Oils that meet this specification

Every product listed carries the approvals above. Prices indicative.

All products →

Shell

Helix Ultra Professional AF 5W-20

5 litres

£44.00

Halfords

Total

Quartz Ineo First 0W-30

5 litres

£41.50

Opie Oils

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