Thank you, all.
Cosworth is a engine manufacturer that now develops and markets lubricants. Unlike other manufacturers, the primary target of the lubricant is not extended drain, fuel economy, or assisting in exhaust emission reductions, but engine performance and protection. The formulation meets the performance requirements of F1, CCWS, Atlantics, Caterham, and the Duratec engines we build. These are our current "Sequence tests", if you will. The robustness will surely provide extended drain intervals but as our focus is elsewhere, we won't put out a mileage figure.
Again, thanks for the welcome.