lol 51 F? You can run lean with too much e85, When it gets cold out starting can be tough. N54s arent the happiest idling engines to begin with imo. I dont think youll have trouble with a modest mix, are you tuned for it?
E88 FBO N54 Alpinweiss/Coral Red/Meisterschaft Race/Berk Resonated/Macht Schnell 3"/ER CP/Synapse/VRSF FMIC/FFTEC LPFP/HFS-4 DO Stainless Lines/BMS DCI/BMS Thermostat Delete/Rob Beck PCV Valve + Cap/BMS OCC/Cobb E60/ST Coilovers/M3 Front Control Arms + Tension Rods/M3 Subframe Bushings/Apex ARC-8/Project Kics/Macht Schnell Studs/Rogue Transmission Mounts/Alpina TCU Flash/Icarbon/Kerscher/BMW Performance/Cyba