Sheetz e85 vs flex fuel pumps
Colder climates tend to have lower ethanol % during the winter months to help with cold starts.
But yes if you have the ability to run an ethanol sensor with on-the-fly calibration adjustment, that is the ticket. In fact, that was a very large driving factor for me to go aftermarket EMS as opposed to factory harness/PCM, among other things...and I own HPTuners hardware and run a business tuning customers cars, if that tells you anything. Could have done it for free, but chose to spend $1200 instead for this capability as well as some others.


