Which Castrol Oil ? TWS or Titanium ?

[NZ_M3]

The edge professional stuff is not the same as the old tws and isn't the ester-based oil Doug Hillary worked on. That stuff is gone. The new Edge professional is essentially the same as the "Edge Sport" 10w-60 that they used to sell.

The products are all branded slightly differently around the globe.


FYI BMW NZ is still using and supplying Castrol Edge Professional TWS for the early M engines and S54 specifically. So go figure.

[JBird]

I also noticed when looking at the datasheets that the oils themselves are different depending on country. i.e., Oz TWS was different to Europe TWS. Makes sense, as different environments, but I suspect the main reason is simply sourcing the base product locally.