M2C945-A replaced the spec you’re referencing. M2C945-A can be used safely with no issues.Have a low mileage 2010 XFR and like everyone else cannot find any oil to meet the Ford WSS-M2C925-A spec. Read all the thrrads and there's no consensus. What CAN I use safely?
It's pretty well known. They only recommend one spec for the 5/0L engines and only they sell it. Nothing meets the WSS-M2C925-A spec.AMSOIL recommends their Signature Series 5w20 for your car. It’s an excellent oil. I don’t know who you talked with at Jaguar, but specifications get updated. I would take their advice with a big grain of salt.
It's pretty well known. They only recommend one spec for the 5/0L engines and only they sell it. Nothing meets the WSS-M2C925-A spec.
And you don’t see a conflict of interest in that?It's pretty well known. They only recommend one spec for the 5/0L engines and only they sell it. Nothing meets the WSS-M2C925-A spec.
Of course but this has been known for many years. It's not one parts guy.And you don’t see a conflict of interest in that?
“we are the only ones selling a suitable oil”...
Was it the parts guy selling the oil who told you that?
WSS-M2C925-A is simply a spec requiring a full synthetic.It's pretty well known. They only recommend one spec for the 5/0L engines and only they sell it. Nothing meets the WSS-M2C925-A spec.
The spec does not mention anything about base oil type or requirement. It is a pretty old spec requiring a 5W-20 based off of ACEA A1/B1 but with some additional Ford-specific test requirements (oxidation stability, fuel economy). It is likely that only a synthetic will meet the performance demands but it isn't mandated. The 945-A spec is a 5W-20 based on ILSAC GF-5, so different. JLR spec STJLR.03.5004 replaced Ford 925-A (JLR have introduced their own specs to undo reliance on heritage Ford specs from their time as part of PAG).WSS-M2C925-A is simply a spec requiring a full synthetic.
Thanks Weasley, I was hoping someone in the know like you would help out.The spec does not mention anything about base oil type or requirement. It is a pretty old spec requiring a 5W-20 based off of ACEA A1/B1 but with some additional Ford-specific test requirements (oxidation stability, fuel economy). It is likely that only a synthetic will meet the performance demands but it isn't mandated. The 945-A spec is a 5W-20 based on ILSAC GF-5, so different. JLR spec STJLR.03.5004 replaced Ford 925-A (JLR have introduced their own specs to undo reliance on heritage Ford specs from their time as part of PAG).
and “Suitable for use in petrol, diesel and LPG engines where SAE 5W-20 ACEA C5 (previously A1/B1) specification is required.
Especially recommended for Ford petrol engines demanding a Ford WSS-M2C948- B specification and is backwards compatible with WSS-M2C913-B motor oils, as well as WSS-M2C925-B.”
I believe M2C925-B was the updated 925-A, which is what you want.
I would stick to the 913-D oil, it’s one of my favourites. It starts out as a thin 5W30 A5/B5 oil with extra TBN added for long OCI and extra ZDDP added for the Ford timing chain wear test.Thats interesting. My Mondeo ST220 specifies WSS-M2C913B oil. Officially, WSS-M2C913C and WSS-M2C913D oils are the secessors and fully backwards compatible. However, despite the owners manual calling for a WSS-M2C913B oil or a 5W30 A1/B1 oil all the oil websites when you search for the car suggest 5w20 oils. I wonder if this is why?