Hello. I’m in front of the 80tkm inspection and got a KV at a new Volvo workshop. There’s a Castrol A5/B5 0W 30. When I used to buy the C30 from the Volvo dealer, Castrol Professional Longtec A3/B3/B4 0W 30 was filled in at the 20tkm inspection (at least on the invoice). On the badge in the engine compartment is 5W 30, but without specification (the car is from Spain!) and according to the German operating instructions I should take an A3/B3/B4 0W 30 and in bad conditions A5/B5 0W 30. At the 40tkm and 60tkm inspection I have brought the oil with me and indeed the Castrol Professional Longtec A3/B3/B4 0W 30. What’s right now? I don’t have to change one time. And lastly: Castrol is changing the terms of his oils. Total confusion. The Castrol Professional Longtec A3/B3/B4 0W 30 will probably be called Castrol EW 30 Professional.