AmsOil is not certified by any specifications board, such as API.
I would not use it.
"Engine Oil Licensing and Certification System (EOLCS)
API's Engine Oil Licensing and Certification System (EOLCS) is a voluntary
licensing and certification program that authorizes engine oil marketers who
meet specified requirements to use the API Engine Oil Quality Marks.
API's Engine Oil Quality Marks-the API Service Symbol "Donut" and
Certification Mark "Starburst"-help consumers identify quality engine oils
for their gasoline- and diesel-powered vehicles"
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.