Fiat, Peugeot and Citroën approvals
The Fiat 9.55535 and PSA B71 codes and their successors Stellantis FPW 9.55535: which oil for which engine.
- Fiat 9.55535-S1, S2, S3, DS1: what do the Fiat codes on the can mean? How to read the Fiat 9.55535 codes: how S1 differs from S2 and S3, what GS1, DS1, M2 and CR1 are, and how they pass into the Stellantis FPW system.
- PSA B71 2290, 2296, 2312: which oil does your Peugeot or Citroën want? What the codes PSA B71 2290, 2296, 2312, 2010 and Stellantis FPW 9.55535 on the can mean, and why an oil with an old code is no good where the new one is required.