so i have a question for any of you guys that are running full E on the LNF. im currently running a 7163, E47, opel injectors and a zzp hpfp. i love E47 and its been great but im getting tired of testing and mixing at every fill up and would just love to pull up to the gas station, fill up and go! no fuss no muss.

my question is, have you guys ever realistically had any issues with your tunes or cars using full E with an actual ethanol content of less than 85% from the pump like say, for instance, a low winter blend? in my testing through the time of running E47 ive seen as low as 70% and as high as 90%. is that swing of 15% less ethanol content than 85 gonna actually be a big enough problem to make the car not run right or blow if tuned for 85? how about filling up with a HIGHER ethanol content than 85?

just weighing my options here. ill stick with E47 if need be or go with a higher blend. any help on the matter will be appreciated.