Oil-Peugeot uses PSA (now Stellantis) oil specifications that define precise chemistry requirements for their engines. Getting the oil spec right is especially critical for PureTech engines with the wet timing belt — the wrong oil can destroy the belt and your engine.
PSA B71 2290 — Standard Diesel & Petrol (5W-30)
PSA B71 2290 is the standard specification for most Peugeot diesel engines (HDi, BlueHDi without SCR) and many petrol engines. It requires SAE 5W-30 with low-SAPS content (ACEA C2 base). This spec covers the 1.6 HDi (DV6), 2.0 HDi (DW10), and older petrol engines. It's the most common Peugeot oil spec and is widely available from brands like Total, Mobil, and Shell.
PSA B71 2312 — PureTech & BlueHDi SCR (0W-30)
PSA B71 2312 is the critical specification for all 1.2 PureTech turbo engines and newer BlueHDi diesel engines with SCR (AdBlue) systems. It requires SAE 0W-30 with ultra-low-SAPS chemistry. For PureTech engines with the wet timing belt, this spec is non-negotiable — the oil's chemical composition directly affects belt longevity. Using an ACEA C3 oil instead of B71 2312 will accelerate belt degradation and can cause catastrophic engine failure.
The PureTech Wet Belt — Why Oil Choice Is Critical
Peugeot's 1.2 PureTech engine uses a timing belt that runs submerged in engine oil (belt-in-oil design). The belt material is sensitive to the chemical additives in oil — incorrect oil causes the rubber to swell, crack, and shed particles that clog the oil pump strainer. This is why PSA specified B71 2312 with its precise additive balance. Stellantis recalled approximately 500,000 vehicles in 2021 over this issue, and announced a compensation programme in May 2025.
Total — Peugeot's Official Oil Partner
Peugeot has a long-standing partnership with Total (now TotalEnergies). Total Quartz INEO First 0W-30 (B71 2312) and Total Quartz INEO ECS 5W-30 (B71 2290) are the factory-fill oils. However, any oil carrying the correct PSA approval is equally suitable — the specification matters more than the brand name.