So long as the Adblue meets the correct spec, it should be fine. The spec is ISO 22241-1.iBarryJ said:I've topped up the Adblue several times in my previous Alhambra and if you source the official VW fluid it comes on a foolproof dispenser bottle that fits the filler tank neck. Some garages sell the stuff 'draught' from special pumps for heavy goods trucks so you can obtain it much cheaper than the VW product. I always stayed with the VW official product as you could have warranty issues if you don't. I think the last bottle cost about £35 from a VW motor parts supplier