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What oil is recommended for Ford Transit Custom?

The Transit Custom typically calls for a fully synthetic 5W-30 engine oil that meets Ford’s current EcoBlue specification. Always verify the exact grade and specification for your model year and engine variant in the owner’s manual or with a Ford dealer.


Oil specification essentials


Before listing the core criteria, know what to look for when selecting oil for your Transit Custom.



  • Viscosity and type: Use a fully synthetic 5W-30 engine oil as the standard for EcoBlue diesel engines. Some markets or specific engines may permit alternatives (such as 0W-30 or 5W-40) only if Ford explicitly approves them in the manual or official service data.

  • Ford specification: The oil should meet Ford’s current specification for EcoBlue engines (the exact code can change with updates; check the owner’s manual or Ford service data for the latest requirement, commonly listed as Ford WSS-M2C934-B or its latest equivalent).

  • Performance standard: Choose a low-SAPS oil that typically meets ACEA C3 to protect the diesel particulate filter (DPF) and emission-control systems.

  • Quality and certification: Prefer a reputable brand of fully synthetic oil that also carries API certification (such as API SN or newer) and explicitly states compliance with Ford’s specification and ACEA rating.


Following these criteria helps ensure compatibility with the Transit Custom’s diesel engines and emissions controls while supporting warranty requirements.


Context: EcoBlue engines, DPF, and updates


The guidance above reflects current practice for EcoBlue-based Transit Customs and related Ford diesel engines. Ford has periodically updated oil specs and approved viscosity ranges, so always confirm the exact requirement for your vehicle’s year and engine variant via the owner’s manual or a Ford dealer.


Climate and engine-variant considerations


Before detailing practical options, note how climate and engine variant can influence the recommended oil choice.



  • Standard specification: For most EcoBlue 2.0 diesel engines, 5W-30 full synthetic is the baseline recommendation.

  • Climate adjustments: In very cold climates, some markets may approve alternate viscosities if endorsed by Ford; in very hot climates, a slightly higher viscosity may be suggested by the dealer or service data.

  • Older or alternate engines: Earlier Transit Custom models (non-EcoBlue diesel variants) may have different Ford-approved oil grades; always check the specific manual for that engine.


Always cross-check with the vehicle’s manual and Ford’s service data to choose the exact oil grade and specification for your climate and engine variant.


Practical sourcing and verification guidelines


Before listing practical sourcing tips, here’s how to ensure you choose the right oil and avoid issues with warranty or emissions systems.



  • Official approvals: Buy oil that explicitly states compliance with Ford’s specification for your Transit Custom and the stated viscosity (5W-30 is typical for EcoBlue engines).

  • Brand and quality: Prefer well-known brands (for example Castrol, Mobil 1, Shell, Motul, etc.) that clearly publish Ford compatibility alongside ACEA and API ratings.

  • DPF protection: Choose a low-SAPS oil (often indicated by ACEA C3) to reduce ash buildup and protect the diesel particulate filter.

  • Documentation: Keep the bottle where the specification, viscosity, and approvals are visible in case a service advisor or inspector asks for proof of correct oil.


Using oil that aligns with Ford’s specification and the vehicle’s climate and variant helps maintain engine health, fuel efficiency, and emissions system performance.


Summary


In short, for Ford Transit Custom models, start with a fully synthetic 5W-30 engine oil that meets Ford’s EcoBlue specification and typically carries ACEA C3 ratings. Verify the exact Ford specification code and viscosity for your year and engine in the owner’s manual or with a Ford dealer, and source from reputable brands that clearly state Ford compatibility. Following these guidelines supports engine reliability, DPF health, and warranty compliance.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.