Complete Oil Specifications
Your 2023 Citroen C3 Aircross 1.2 PureTech 110 requires 5W-30 low-SAPS full synthetic oil meeting the PSA B71 2312 specification and ACEA C2 standard.
Quick Reference
| Specification | Value |
|---|---|
| Viscosity | 5W-30 |
| PSA Standard | PSA B71 2312 / ACEA C2 |
| Capacity (with filter) | 3.7 quarts |
| Oil Filter | Citroen/Peugeot 1109.AL |
| Normal Interval | 12000 miles or 1 year |
Why PSA B71 2312 Is Non-Negotiable
The EB2DTM PureTech 110 combines a turbocharged 3-cylinder with a wet timing belt — a design that runs the belt directly in oil rather than in a dry belt enclosure. This delivers packaging efficiency and reduced friction, but requires an oil formulation that does not chemically attack the belt’s rubber compounds. PSA B71 2312 is validated specifically for wet-belt PureTech engines, and the ACEA C2 low-SAPS classification also protects the gasoline particulate filter (GPF).
Using incorrect oil will:
- ❌ Dissolve the timing belt’s elastomer, causing rapid wear and potential catastrophic failure
- ❌ Deposit ash in the GPF, triggering warning lights and expensive filter replacement
- ❌ Cause abnormal oil consumption in this small-displacement turbocharged engine
Citroen-Approved Oil Brands
-
✅ Total Quartz Ineo EcoB 5W-30 (PSA B71 2312)
-
✅ Castrol Edge 5W-30 C2
-
✅ Shell Helix Ultra ECT C2 5W-30
-
✅ Mobil 1 ESP Formula 5W-30
-
✅ Liqui Moly Special Tec F 5W-30
Verify the label shows PSA B71 2312 — this is the definitive requirement for wet-belt PureTech engines regardless of ACEA C2 compliance elsewhere. Stellantis has since introduced a newer FPW9.55535/03 (ACEA C3/API SN Plus) approval for some 1.2 PureTech builds — confirm which approval applies to your specific VIN before buying oil.
Severe Service Check
You need the 6000-mile interval if you:
- Drive predominantly short urban trips under 5 miles
- Frequently use the vehicle in stop-and-go city traffic
- Experience repeated cold starts in winter below 23°F (−5°C)
- Drive on unpaved or dusty roads regularly
Installation Details
Drain Plug Torque: 15 ft-lbs (20 Nm)
Always replace the aluminum drain plug sealing washer — it is crushed during tightening and cannot seal reliably if reused.
OEM Filter: Citroen/Peugeot 1109.AL
Aftermarket Filters:
- Mann-Filter W 7058
Pro Tip: The C3 Aircross shares the same wet-belt EB2 architecture as the Peugeot 2008/308 and Opel Mokka, so oil filters and approved brands are interchangeable across these Stellantis siblings.
FAQs
What oil does a 2023 Citroen C3 Aircross 1.2 PureTech 110 take?
5W-30 full synthetic oil meeting PSA B71 2312 and ACEA C2.
How many quarts does it need?
3.7 quarts with a new filter, 3.4 without.
Can I use an oil that’s only ACEA C2 without the PSA B71 2312 approval?
Not recommended. This engine requires the specific chemistry validated by PSA B71 2312 for wet-belt compatibility; a generic ACEA C2 oil may lack that specific certification testing.
Is the C3 Aircross’s PureTech 110 different from the Peugeot 2008’s?
The block architecture is shared, but tune and displacement variants differ by model — always confirm the oil spec matches your specific engine code.
How often should I change the oil?
Every 12000 for normal driving, or every 6000 for severe/urban use.
Need these specs on your phone? Download OilFinderPro app for offline access and oil change reminders.
Last verified: 2026-07-14 | Source: 2023 Citroen C3 Aircross Owner’s Manual (engine code and filter confirmed via MANN-FILTER catalogue; oil approval should be checked against VIN — Stellantis has introduced newer FPW9.55535/03 ACEA C3 approvals for some PureTech builds that may supersede B71 2312)