I've been running B100 (quality fuel from Sequential Biofuel which meets ASTM D9675 standard) for 3 years in my 2013 Sportwagen TDI. No issue except I do notice eventually crankcase oil level rising, so oil changes more often. Otherwise it runs great! I've been interested in removing the DPF and doing the Delete so it doesn't cause fuel to be injected to burn off soot in the DPF (causing fuel to slip by the rings into the crankcase), but haven't done anything beyond just considering it. The engine has 100 mile warranty...so just make sure you put petrol diesel back in it if you have to bring it in to the dealer with any warranty issues.
