I would like to announce an Reformulated, Repackaged XL Synthetic Motor Oils go here

AMSOIL XL Synthetic Motor Oils have been reformulated to last longer in service and meet the more stringent ILSAC GF-5 and API SN service categories. Available in four different viscosities, XL Synthetic Motor Oils are recommended for up to 10,000 miles or six months of service, whichever comes first, or longer when recommended in owners’ manuals or indicated by electronic oil life monitoring systems.

Bill Crow