If this is the same V-Power with added nitrogen that they've been selling in the states for a few years, don't get too excited. Shell was trumpeting this here, but it's a lot of marketing BS. I can't speak for additives in the UK, but over here ALL gasoline already contains nitrogen, the Shell V-Power simply has more. When I looked into it, the consensus was that the benefit of extra nitrogen is negligible to non-existent. I've run it a few times, and based on my long term fuel logs I actually get worse economy on V-Power than on the same octane gasoline from other stations. FYI, V-Power is the same octane as "premium" at any station here.