Originally Posted by
petemac110
Very nice! Are you simply running a bit of E85 on top of the usual 98RON for detonation resistance and minimising pulled timing, or is your tune specifically an E30 tune and you're after a visual indication of the ethanol ratio without going down the road of a flex-fuel sensor and associated tune?
I run a splash of E85 in my Stage 1 Passat 206TSI most of the time now, as whilst my tune isn't specifically set up for it, it simply loves an ethanol content of around E15-E20 with adequate fuelling system headroom and O2 sensor feedback to hit target AFRs. The torque delivery is FAR nicer with a bit of corn juice in there, particularly in hot weather.