WSS-M2C929-A for 2005

[tenderloin]

"New" Mobil 1 meets this new Ford spec, as do many new oils. Any worry using last years Mobil 1 or other "older" 5w30 synthetics where this spec is called for (2005 Ford 4.0L sohc)? TIA


The Ford Engineering Material Specification for SAE 5w30 service fill oils is WSS-M2C929-A, which specifies ILSAC GF-4 requirements and the additional specifications beyond ILSAC GF-4 that are the same as SAE 5W-20. SAE 5w30 with the API Certification Mark displayed is recommended for 2005 MY 4.0L V6 applications only.

SAE 5W-20 engine oil with the API Certification Mark displayed continues to be the oil recommended for most 2005 MY Ford vehicles and some Mazda vehicles. The Ford Engineering Material Specification for SAE 5W-20 service fill oil is WSS-M2C930-A, which specifies primarily ILSAC GF-4 requirements. In addition, VG follower pin and ring wear limits and the 30 mg TEOST limit are specified. We continue to strongly promote the use of SAE 5W-20 for our customers. We also request the continued support of oil marketers to supply oil for our vehicles that follows the owner guide recommendation.

[ April 12, 2005, 08:55 PM: Message edited by: tenderloin ]

 

[Roger]

I really don't know, but I seriously doubt it in normal useage. While the newer Ford spec is an improvement for 5W30 oils, it would be interesting to see if any of the older oils meet it if they were tested. But no one is going to go to that trouble afterthefact.