I just noticed Motorcraft has "reformulated" their oil last year, or has new specification numbers at least. 5w20 was wss-m2c-945-A is now wss-m2c-945-b1, so on and so forth. PPPP is speced for the later so i am assuming the current will be superior? So I changed my oil a few months ago with an out of spec, out dated oil is how I feel...
motorcraft® gasoline and diesel engine ...
PDFDirect Automotive Distributing › 2018/08
motorcraft® gasoline and diesel engine ...
PDFDirect Automotive Distributing › 2018/08