Per ford you should be using an oil that meets or exceeds the WSS-M2C961-A1 standard.
Ford Chemical and Lubricants info page:
https://www.fcsdchemicalsandlubricants.com/resources/quickreferencecharts
Great post here on the Bronco forum with everything meeting the specs of Ford for 5w30 offerings: https://www.bronco6g.com/forum/thre...ist-that-meets-ford-spec-wss-m2c961-a1.82783/
Direct Link to Sheet: https://docs.google.com/spreadsheets/d/1qsjmpZR7Y1Qb6u_3PBp0WcCeuuihcL4_3vpz6gwNBTM/edit
What makes the WSS-M2C961-A1 standard:
- Viscosity: SAE 5W-30
- ILSAC Standard: GF-6A
- API Certification: API SP
- Engine Tests: The oil must perform well under several ASTM tests, including:
- D6557 (Ball Rust Test)
- D8111 (Sequence IIIH - for oxidation and viscosity increase)
- D8350 (Sequence IVB - for valve train wear)
- D8256 (Sequence VH - for fuel efficiency)
- D8114 (Sequence VIE - for LSPI control)
- D6709 (Sequence VIII - for high-temperature deposit formation)
- D6335 (TEOST 33C - for deposit formation under thermal stress)
- Additional Requirements:
- Oils need to pass a Ford-specific chain wear test, which indicates durability for engine timing chains.
- They require a Total Base Number (TBN) greater than 10, which is higher than some other standards like ACEA A5/B5 which require a TBN >8, indicating good acid neutralization capability.
- Ford also prescribes additional oxidation tests to ensure oils do not degrade too quickly, enhancing engine longevity.
- Compatibility: This spec supersedes the older WSS-M2C946-B1 standard. Oils meeting WSS-M2C961-A1 are generally considered backward compatible for engines specifying the older standard, but for warranty and optimal performance, Ford recommends using oils that meet this newer specification.
- Market Availability: Brands like Motorcraft, Valvoline, Mobil 1, Castrol, and Pennzoil have oils that meet this specification. However, not all oils from these brands that meet API SP or ILSAC GF-6A will necessarily meet WSS-M2C961-A1 due to the additional Ford-specific tests and requirements.
**The information above is derived from various sources discussing Ford oil specifications, particularly from forums like BobIsTheOilGuy and Ford-specific forums.**
Ford Chemical and Lubricants info page:
https://www.fcsdchemicalsandlubricants.com/resources/quickreferencecharts
Great post here on the Bronco forum with everything meeting the specs of Ford for 5w30 offerings: https://www.bronco6g.com/forum/thre...ist-that-meets-ford-spec-wss-m2c961-a1.82783/
Direct Link to Sheet: https://docs.google.com/spreadsheets/d/1qsjmpZR7Y1Qb6u_3PBp0WcCeuuihcL4_3vpz6gwNBTM/edit
What makes the WSS-M2C961-A1 standard:
- Viscosity: SAE 5W-30
- ILSAC Standard: GF-6A
- API Certification: API SP
- Engine Tests: The oil must perform well under several ASTM tests, including:
- D6557 (Ball Rust Test)
- D8111 (Sequence IIIH - for oxidation and viscosity increase)
- D8350 (Sequence IVB - for valve train wear)
- D8256 (Sequence VH - for fuel efficiency)
- D8114 (Sequence VIE - for LSPI control)
- D6709 (Sequence VIII - for high-temperature deposit formation)
- D6335 (TEOST 33C - for deposit formation under thermal stress)
- Additional Requirements:
- Oils need to pass a Ford-specific chain wear test, which indicates durability for engine timing chains.
- They require a Total Base Number (TBN) greater than 10, which is higher than some other standards like ACEA A5/B5 which require a TBN >8, indicating good acid neutralization capability.
- Ford also prescribes additional oxidation tests to ensure oils do not degrade too quickly, enhancing engine longevity.
- Compatibility: This spec supersedes the older WSS-M2C946-B1 standard. Oils meeting WSS-M2C961-A1 are generally considered backward compatible for engines specifying the older standard, but for warranty and optimal performance, Ford recommends using oils that meet this newer specification.
- Market Availability: Brands like Motorcraft, Valvoline, Mobil 1, Castrol, and Pennzoil have oils that meet this specification. However, not all oils from these brands that meet API SP or ILSAC GF-6A will necessarily meet WSS-M2C961-A1 due to the additional Ford-specific tests and requirements.
**The information above is derived from various sources discussing Ford oil specifications, particularly from forums like BobIsTheOilGuy and Ford-specific forums.**
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