Stellantis, frequently asked questions about lubricants and their answers.

What is the FPW955535/03 standard?

The new Stellantis standard FPW9.55535/03 defines the technical specifications for a high-performance, next-generation 5W-30 viscosity motor oil, designed to reduce wear on mechanical components.

Does this mean that the FPW955535/03 and B71 2290 standards are equivalent?

The performance level required by the FPW9.55535/03 standard is significantly higher than that required by the B71 2290 standard. As a result:

  • The use of oil that mentions the B71 2290 standard but does not mention FPW9.55535/03 is prohibited if the vehicle maintenance plan requires a lubricant conforming to the FPW9.55535/03 standard.
  • The use of oil that mentions both the FPW9.55535/03 and B71 2290 standards offers additional protection if the vehicle maintenance plan requires a lubricant conforming to the B71 2290 standard.

Can I use B71 2290 oil as a substitute for FPW9.55535/03 oil?

No, the technical specifications of FPW9.55535/03 oil are significantly higher than those of B71 2290 oil, providing better protection for the engine.

Therefore, it is strongly advised against using B71 2290 oil as a substitute for FPW9.55535/03 oil. Please contact a lubricants supplier for a product that is officially approved for FPW9.55535/03.

Can I replace an ACEA C3 grade 5W-30 oil with oil conforming to the FPW9.55535/03 standard?

ACEA standards guarantee a standard level of performance for lubricants. However, the FPW9.55535/03 standard requires a performance level significantly higher than the ACEA C3 standards.

Therefore, it is strongly advised against using an ACEA C3 5W-30 approved oil as a substitute for an FPW9.55535/03 approved product.

Can I add an additive to B71 2290 oil to replace the use of FPW9.55535/03 oil?

The use of additives in the lubricant is prohibited as it may degrade the performance of the oil.

Does using a higher grade oil such as 5W-40, 20W-50, or 10W-60 provide additional protection compared to oils conforming to the FPW9.55535/03 standard?

Viscosity grade is not the only characteristic of oil that guarantees protection for mechanical components.

Using an unsuitable oil presents a high risk of damaging pollution control systems, such as the catalytic converter or the particulate filter, as well as a risk of complete destruction of the piston/ring assembly due to pre-ignition of the air-fuel mixture in gasoline engines.

Only products that meet the Stellantis standards indicated in the maintenance plan should be used.

Does using FPW9.55535/03 oil impact the vehicle's fuel consumption or emissions? Does this pose a risk for the technical inspection?

Next-generation synthetic technology oils, such as those approved under FPW9.55535/03, help reduce CO2 emissions by lowering fuel consumption.

Oils approved under FPW9.55535/03 that meet Stellantis' specific standards contribute to reducing pollutant emissions by enabling the proper functioning of aftertreatment systems, such as particulate filters.

A lubricants supplier tells me that their 5W-30 oil is equivalent to FPW9.55535/03 but does not have official Stellantis approval. Can I use it?

It is strongly advised against using an oil that has not received official Stellantis approval. Lubricant manufacturers must demonstrate that their product meets the required performance level to ensure the durability of the engine's mechanical and anti-pollution components.

This performance level must be confirmed by Stellantis for the oil manufacturer to claim an FPW9.55535/03 certification.

Can I use oil that a supplier claims is compatible with the FPW9.55535/03 standard but does not have the standard marked on the product?

Any product officially approved by Stellantis will have this information clearly indicated on its packaging.

It is strongly advised against using a lubricant that does not mention the FPW9.55535/03 standard on its packaging.

My billing system does not show the oil standard on the customer's invoice, only the viscosity grade. Should I specify it to differentiate between a 5W-30 B71 2290 oil and a 5W-30 FPW 9.55535/03 oil?

Yes. To ensure traceability of compliance with Stellantis recommendations, it is essential to show the oil standard on the customer's invoice, along with the commercial product name. This will be necessary to justify the use of an officially approved product conforming to the required standard in case of a warranty coverage request due to an engine incident.

My customer was using oil that met the B71 2312 (0W-30) or B71 2010 (0W-20) standard before the implementation of FPW9.55535/03 oils. Does this put the extended manufacturer warranty at risk?

No. Stellantis has defined application dates that must be adhered to for the warranty and extended warranties to remain valid.

Please check the vehicle maintenance plans to verify the application dates of Stellantis FPW 9.55535/03 oil in aftersales service.

My customer has exceeded the maximum mileage for the oil change interval. Is there any tolerance?

Yes. The tolerance is 3000 km and 3 months after the service due date, or when the service light comes on.

The oil change light on my customer's vehicle is on, but the mileage reached with the motor oil is below what is indicated in the maintenance plan. Should I turn it off or tell them to reach the mileage limit for an appointment?

Vehicles equipped with the self-adaptive maintenance system indicate that the oil has reached a level of wear that requires immediate replacement. Using a vehicle with motor oil that needs to be replaced presents a risk of irreversible damage to mechanical components and may void the warranty.


For more information, consult your trusted CASTROL SERVICE workshop.