Because of the piston ring problems at the Auris 2 Hybrid before 9.2014 I want to have an oil exchange. I have obtained a LiquiMoly with Spec as mentioned by @rondhole. Nearby there are only free workshops, probably it must be at ATU. Are there special features to consider that an independent workshop does not know? Oil filters and sealing rings are unproblematic if not original? Rondhole, what can you say?