Oil ????

Personally speaking, once my break in period is completed, I'll use nothing but Mobil 1..Until then, I'll continue using Motorcraft 5-20 as recommended by Ford.. However, I've heard from some members, that a break in period isn't really necessary and have also heard from others, that a break in period is recommended, being that I have only 1,018 miles on my 05 GT. I guess I'll play it safe and wait, until reaching 2,500 miles, before switching over to Mobil 1..:shrug:
 
i use mobil 1 fully synthetic in my car. many people claim that Amsoil is far better. personal opinion i guess. go with what you are comfortable with. i have never personally met an Amsoil user, so i have not been swayed into trying that brand. i KNOW mobil 1 has had good results, so i use it.

here is a link to amsoil.....

http://www.amsoil.com/