AMSOIL of course. Why use anything else when u can use the best.
AMB said:The BEST oil to use in the 03/04 Cobra is "5-50" Synthetic!!! This is the OIL that Ford uses in the Ford GT and the Shelby GT 500!! I use Castrol Syntec SAE 5w-50 in my Cobra and Ford GT !!
AMB
Mach1USMC said:Royal Purple 5w20 w mobil1 filter:thumbsup:
Mystic03 said:+1 fram filter :beer: