Don't drive a Ford and.. well, I won't go there.
However I have done a lot of reading about different brands and grades of oil and will say this:
1: I am sold on synthetic
2: More expensive is not, necessarly, better
3: There are dozens of magazine articles where gear head type mag's have tested several oils, both Dino and "Synthetic" and Syntehtic (There is a reason I put one in quotes) and frankly.. I was surprised by a few of them
For example.. One brand I know that in Dino land is not all that well regarded.. came out on top in the "Synthetic" category.
No, I won't mention the brand... You need to do your own research there
"Oil brand ratings" without quotes.. feed it to
Blackle - Energy Saving Search and Google will serve up (yes that's really google) several motor oil review links.