Amoil - "The Amercian Oil" as their logo says is a local mainly SMI commercial lubricant manufacturer that claimed to have joint venture with an American based company (what company?  NOT disclosed). 

Beware of local lubricant manufacturers that claim that their lubricants are of "USA or German Technology".  The only connection with USA or Germany is the additive packages are probably made in USA, to lesser extent, Germany.  Many of these manufacturers are not ethical.  The "technical connection" with USA or Germany is very skeptical.

It takes millions of dollars for a major oil company such as SHELL, BP/CASTROL, FUCHS, EXXON-MOBIL, Q8 to develop and field test a particular engine oil before they are marketed worldwide.  I would rather stick with the engine oils from any of these major oil companies as long as I know the source is reliable (not counterfeit).