I doubt you'd have to do it at 6,000 miles, Vz. I know your car is a UK import Skoda so it will either have a fixed service interval of 10,000 miles or a variable service interval. The identification plate/stickers tell you which applies. Either way, with the DPF models you must use the thinner oil i.e. 5W30 fully synthetic to VW504.00/VW 507.00 specification.
My Skoda (non DPF) is a variable interval model which means, provided you reset the service interval via the OBD interface - using a tool such as Ross Tech or OBD Eleven - you don't need to change the oil until the "service" display comes on. As I always change my oil at 20,000 kilo intervals the display has never come on. Well it did once because I deliberately neglected to reset it when I changed the oil just to see when (and check that) it kicks in, on that occasion it was at 28,xxx kilos which is pretty close to the maximum interval which is set at 30,000 kilos by default - used to be 50,000 kilos on the older engines that were never used with DPFs.