Complete Oil Specifications
Your 2022 Citroën C3 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) | 4.0 quarts |
| Oil Filter | Citroën 1109.CK |
| Normal Interval | 12000 miles or 1 year |
Why 5W-30 PSA B71 2312 Is Essential
The EB2ADTS is a turbocharged 3-cylinder with a wet timing belt — the belt runs submerged in engine oil rather than in a dry enclosure. This design requires low-SAPS (reduced sulphated ash, phosphorus, sulphur) chemistry to prevent belt material degradation. PSA B71 2312 oils are specifically validated for this wet-belt architecture and protect the belt throughout the full service interval.
Using incorrect oil will:
- ❌ Accelerate wet timing belt degradation, risking catastrophic belt failure
- ❌ Clog the gasoline particulate filter (GPF) with excess ash deposits
- ❌ Cause premature turbocharger bearing wear at high engine temperatures
Citroën-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
Confirm the label shows PSA B71 2312 or ACEA C2 — both designations indicate the correct low-SAPS formulation for this engine.
Severe Service Check
You need the 6000-mile interval if you:
- Drive predominantly short urban trips under 5 miles
- Frequently idle in stop-and-go city traffic
- Experience regular cold starts in temperatures below 14°F (−10°C)
- Drive in dusty conditions
Installation Details
Drain Plug Torque: 15 ft-lbs (20 Nm)
Replace the aluminium drain plug washer at every oil change — it is a single-use sealing ring.
OEM Filter: Citroën 1109.CK
Aftermarket Filters:
-
Mann-Filter HU 712/7 x
-
Bosch 1 457 429 114
-
Mahle OC 467
Pro Tip: The 1.2 PureTech holds very little oil — add carefully and check the dipstick after each 0.5-quart increment to avoid overfilling. The filter is accessible from above on the EB2ADTS, making DIY oil changes straightforward.
FAQs
What oil does a 2022 Citroën C3 1.2 PureTech take?
5W-30 full synthetic oil meeting PSA B71 2312 and ACEA C2 specifications.
How many quarts does it need?
4.0 quarts with a new filter, 3.7 without.
Can I use 5W-40 instead of 5W-30?
No. The wet timing belt and GPF require the low-SAPS formulation in PSA B71 2312. A 5W-40 oil typically carries ACEA A3/B4 classification with higher SAPS content that is incompatible with this engine.
Is the timing belt the same as a cam belt?
Yes — and unlike most timing belts, the PureTech’s belt runs in an oil bath. This extends belt life but makes the correct oil specification mandatory, not optional.
How often should I change the oil?
Every 12,000 miles or 1 year for normal driving. Every 6,000 miles or 6 months for predominantly urban or short-trip driving.
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Last verified: 2026-05-21 | Source: 2022 Citroën C3 Owner’s Manual