Yes filter by engine type is now rendered useless since the engine type information people chose originally is no longer available with arbitrary assignment of a single standard US model engine type to hundreds of existing vehicles. Looks like all Subaru Outbacks up to 2010 now have 2.5 L V4 Gas engines. This Includes my Turbo Diesel and many 6 cylinder engines. Note Subaru does not make V engines only flat (Horizontally Opposed) H engines. This attempt at mass standardisation of the data is doomed to be a disasterous failure for the usefulness of the site.