I use Amsoil. It is API service SJ and CF rated. If you want proof of that, I don't know what I can give you. I'm reading it off of the back of the bottle, and am going so far as to assume that it wouldn't be printed there if it weren't true. If this isn't good enough for ya, I'd like to see what proof you have of the ratings on the oils you use.
In adition, it specifically states that it meets Ford specification WSS-M2C153-H.
From AMSOIL's website: "NOTE: In order to ensure that lighter viscosity 5W-20 oils don’t sacrifice engine durability, Ford created its own oil specification known as the WSS-M2C153-H, which includes all ILSAC (GF-3) requirements, as well as an additional ASTM Sequence III Test. ... AMSOIL XL-7500 Synthetic 5W-20 Motor Oil (XLM) meets this requirement."
The other brand I have heard markets fully synthetic 5W20 is Redline. I don't use it, and I don't have a bottle handy, so you will have to do your own research there.
Joe