in the past, there were rumors that CAFE created an incentive to spec lower weight oils and European/foreign vehicles had manuals that speced viscosities higher than in the US.It's interesting to see that there are several oil consumptions threads in various Subaru forums where 0W-20 is specced. The Forester forum has had an ongoing thread since June 2011 and now 2013 owner's are posting the same thing. There are also posts popping up on nasioc in regards to the Impreza as well as posts on various BRZ forums.
I wonder if it's still that way? Do British or German soobs come with a manual that suggests higher viscosities than here?