I contacted customer service regarding oil specification and received a prompt and informative answer. The information regarding 100% synthetic 2 stroke oil was nor available (as far as I could see) on the website, but I did find it by Googling 'synthetic 2 stroke oil...however the JASO spec on that page (jaso fc) is different to the spec sheet sent by your rep (jaso fd) These are small issues and could be circumvented by putting basic spec details on the label of the 100ml bottles. I would not use an oil without this info being apparent. However I am very happy with the product, having researched its provenance and the background of the Finol company, and will use it again.