One of the reasons there are not more lubricants on the market with SynLube's properties is that it is always more profitable to sell an adequate product lots of times than one just once.
BTW, meeting the API standards was not that easy. I'm told that the implementation for the SM spec was held up nearly a year because so many dino oils were experiencing difficulties.
With regard to European makes, the competition is just overwhelming for a company like SynLube. It can't stand up to the competition from companies like Castrol, Shell, Motul, etc.
In Russia however, there has been more acceptance and Miro Kefurt spends some time over there. In that country with maintenance facility being much less abundant, SynLube meets more acceptance. GAS Volga
Speaking of a lack of maintenance facilities here's where SynLube reallyshines: Sojourner
Here are the specifications, that SynLube meets.