Anybody here used 20-50 full synthetic?... I use Amsoil for all my vehicles and the only oil they offer is a Race 20-50...any thoughts anybody? The car is kept in a heated place (70 deg) and not taken out below 45 deg.
I use Amsoil in all of my other cars but they don't have anything that meets spec yet for the GT500. You may want to also look at the Racing 15w50 by Amsoil if you are set on Amsoil. I just run the EAO filter and Ford synthetic.