Complete Oil Specifications
Your 2023 Opel Mokka 1.2 Turbo 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) | 4.2 quarts |
| Oil Filter | Opel/Stellantis 3647177 (also cross-referenced as PSA 1109AL / 9644885480) |
| Normal Interval | 12000 miles or 1 year |
Why PSA B71 2312 Is Non-Negotiable
Since Stellantis’s formation, the Mokka shares its EB2ADTS 1.2 PureTech engine directly with PSA-brand vehicles like the Peugeot 308. This turbocharged 3-cylinder runs its timing belt submerged in oil (a “wet belt”) instead of a dry chain — a compact, quiet design that requires oil formulated not to attack the belt’s rubber compound. PSA B71 2312 is validated specifically for this wet-belt architecture, and the low-SAPS ACEA C2 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
Opel-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 — Opel’s own dexos-branded oils do not cover this Stellantis-era PSA engine; only PSA B71 2312 / ACEA C2 oils are correct. 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 and maintenance plan before buying oil.
Severe Service Check
You need the 6000-mile interval if you:
- Drive predominantly short urban trips under 5 miles
- Frequently drive in stop-and-go city traffic
- Experience repeated cold starts in winter
- 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: Opel/Stellantis 3647177 (also cross-referenced as PSA 1109AL / 9644885480)
Aftermarket Filters:
- Mann-Filter W 7058
Pro Tip: Since the 2020 redesign, the Mokka shares its PSA-sourced EB2ADTS platform with the Peugeot 208/308 and Citroën C3/C3 Aircross — parts and oil specs are interchangeable across these Stellantis siblings.
FAQs
What oil does a 2023 Opel Mokka 1.2 Turbo take?
5W-30 full synthetic oil meeting PSA B71 2312 and ACEA C2.
How many quarts does it need?
4.2 quarts with a new filter, 3.9 without.
Is this the same engine as the old GM-era Mokka?
No. The pre-2020 Mokka used a GM-sourced engine requiring dexos2. The current Stellantis-era Mokka uses the PSA PureTech engine and requires PSA B71 2312 instead.
Can I use a dexos-approved oil?
No. dexos1/dexos2 chemistry is not validated for this PSA wet-belt engine — use only PSA B71 2312 / ACEA C2 oil.
How often should I change the oil?
Every 12000 for normal driving, or every 6000 for severe service.
Need these specs on your phone? Download OilFinderPro app for offline access and oil change reminders.
Last verified: 2026-07-14 | Source: 2023 Opel Mokka Owner’s Manual (EB2ADTS 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)