Wrong…totally and completely wrong. Any modern cars fuel system is 100% compatible with Ethanol from a seal and rubber standpoint. You are stuck in the past. There are TONS of F150’s running on full E85 daily. Hey, guess what, same 2nd Gen 3.5TT too. Zero issues.This engine was not design to run on E85 the seal on injectors and other area are not compatible. You are asking for trouble down the line.
Excellent review!I opted for an EZ Lynk programmer and Flex tunes from duramaxtuner. The flex tunes allow you to run a performance tune, but will adjust to the octane you're currenlty running. Any octane w/ E0 - E30 content. The higher the ocatne, the more power you get, but you don't have to re-tune if you're stuck with getting 89 for a fillup in a mountain area. The tow tunes are +50hp / 90lb-ft. Perf tunes are +100/100. They have E tunes for up to E85 that go higher as well. https://duramaxtuner.com/vehicle-type/ford/ecoboost/ecoboost-tuners.html
Separate tunes for engine and transmission & the trans tuning is pretty awesome. Very responsive like driving in Sport mode, but will still cruise in higher gears. Tunes only take a few minutes to load so switching tow/perf is pretty easy. I towed a cargo trailer @max gross from Phoenix to northern CO with the tow tune and it did great. Very happy with it overall. If you do a search, there's a few threads with info on it in the F150 / ecoboost forums.
Retired automotive fuel systems engineer hereThis engine was not design to run on E85 the seal on injectors and other area are not compatible. You are asking for trouble down the line.
Nope, those are the listed specs for the tune so take it with a grain of salt. Nothing out of line with all the other tunes I looked at though, so not really suspect. I did not have it very long before adding the tune. It just feels good & very quick to me, and pulls like a beast with the heavy trailer behind it.Excellent review!
Got any times in your Expy with 93 in the tank? Power claims are one thing, but real world numbers talk.