[F80Boost]

I plan on using E85 for my 2016 435i N55 EWG JB4 setup.


The 93 octane gas i fill up with (shell) already contains 10% ethanol.

BMS states to use no more than 30% E85.


So I'm assuming I can only use 20% E85, since 10% is included in the 93 octane.


My cars gas tank is 15.8 gallons.

15.8 x 20% = 3.16 gallons (basically 3 gallons).


BMS told me to go ahead and install the EWG wires/harness,add 3 gallons of E85, and raise FOL to 70.

Btw, my car is EWG, and my JB4 is the EWG, Im ADDING ON the EWG wire/harness

[Luminous]

E85 is 85% ethanol

[CntryClub007]

Originally Posted by F80Boost

I plan on using E85 for my 2016 435i N55 EWG JB4 setup.


The 93 octane gas i fill up with (shell) already contains 10% ethanol.

BMS states to use no more than 30% E85.


So I'm assuming I can only use 20% E85, since 10% is included in the 93 octane.


My cars gas tank is 15.8 gallons.

15.8 x 20% = 3.16 gallons (basically 3 gallons).


BMS told me to go ahead and install the EWG wires/harness,add 3 gallons of E85, and raise FOL to 70.

Btw, my car is EWG, and my JB4 is the EWG, Im ADDING ON the EWG wire/harness

I run 1 gallon e85 for every 3 gallons of 93. This is an N20 setup. So, for a total tank, it's 4gal e85, and 12gal 93. Puts me at 28.8% ethanol, about E29.

Good calculator to use too:

http://www.georgebelton.com/E85Calculator.php

What map are you running? I didn't need to move anything on the FOL.

[Sheharyar_rr]

You can try an app i made some time ago for iPhone

https://itunes.apple.com/us/app/e85-...3167?ls=1&mt=8

Plug in the desired numbers, it should tell you how much you can fill, will even tell you the octane level you are at

[KELVIN7]

Do you guys have FlexFuel wires? I don't see any #93 in CA 91730 area.

[RoundelM3]

I found a place to get 100% ethanol-free 93 octane about 20 miles from my house...definitely going to make that drive soon.

[F80Boost]

Why would u want 93 ethanol free ? Vs 10% ethanol 93 ?