Does the OM call for 5W20 only? Or do they give choices? Who you calling a dealer, or FMC? And finally, I won't use Amsoil based on what you tell me. After all if my engine dies you won't be replacing it.
Oh yea, I already called Ford, and Chrysler I got my answer, or I wouldn't be posting this.
But if you insist, ask them if non API SSO 0W30 ruins the engine that Ford specifically calls for 5W20 will Ford pay for it? Make sure you taylor your question to get the answer you're looking for Tim.
Also ask them what they think of the 25,000 mile filters too. You should ask Toyota about them too while you're on your fact finding mission. I'm not drinking the Kool Aid, sorry.