2021 Fiat 500 1.0 Mild Hybrid Oil Specs

2021 Fiat 500 1.0 FireFly (hybrid system) Oil Specifications

Viscosity

0W-20

OEM Approval

9.55535-DM1 (SELENIA ECO2 original fluid)

OEM Spec / API

ACEA C5

Capacity

2.5 liters

Normal Interval

15000 km (9,000 miles) or 1 year

From Stellantis Europe S.p.A. (Fiat), Fiat 500 Hybrid Owner Handbook (English, 603.85.049, edition 04, 03.20). See the cited pages.

🔧 Get These Specs On Your Phone

Download OilFinderPro for offline access and oil change reminders

Complete Oil Specifications

The Fiat 500 Hybrid owner handbook specifies SAE 0W-20 ACEA C5 oil meeting 9.55535-DM1 for the 1.0 FireFly engine, with SELENIA ECO2 as the original fluid. Engine oil capacity is 2.5 L for the sump and filter, or 2.2 L for the sump alone.

When to Change the Oil

The handbook’s service schedule calls for changing the engine oil and replacing the oil filter every 15,000 km (9,000 miles) or 1 year.

What We Couldn’t Confirm

OEM oil filter part number and drain plug torque. Neither appears in the owner handbook.

FAQs

What oil does a 2021 Fiat 500 1.0 Mild Hybrid take? SAE 0W-20 ACEA C5 meeting 9.55535-DM1 (SELENIA ECO2 original fluid).

How much oil does it hold? 2.5 L including the filter, or 2.2 L for the sump alone.

How often should I change the oil? Every 15,000 km (9,000 miles) or 1 year.

Primary source evidence

Stellantis Europe S.p.A. (Fiat) — Fiat 500 Hybrid Owner Handbook (English, 603.85.049, edition 04, 03.20)

EU market · Model years 2020-2021 · Published/version 2020-03 · Pages/tables: p. 129 (Service schedule: change engine oil and replace oil filter every 15,000 km / 9,000 miles / 1 year), p. 153 (Refilling, 1.0 FireFly: engine sump 2.2 L, engine sump and filter 2.5 L, SELENIA ECO2), p. 154 (Fluids and lubricants: SAE 0W-20 ACEA C5, 9.55535-DM1)

View official source · Accessed September 29, 2026

Evidence reviewed September 29, 2026.

Disclaimer: These specifications reflect the official documents and applicability shown above as of their access dates. Confirm the requirement against the manual for your VIN before performing maintenance.

Find the Right Oil for Your Car

Download OilFinderPro for vehicle-specific oil specifications and maintenance information.

Browse vehicle specifications here.