First E85 fill up

[Hzaza]

Going to fill up with E85 for the first time, i don’t have the CPI kit as of now, so going to shoot for a E30 mix. Looking for tips or anything to make it a smooth process and close as E30 as possible. Should i wait til my tank is almost empty and fill from there? How many gallons of each. The chart posted is what i found. Current mods are:
JB4 with EWG wires, injen intakes, hks plugs, jun bl secondary downpipes, borla catback, wagner competition intercooler with charge pipe, add-w1 occ. thank you in advance

 

[BadTrainDriver]

To truly get to a perfect E30 mixture, you first need to know the ethanol content of the E85 you're adding...not all E85 is truly E85, FYI.

As a general rule of thumb, add 3 to 4 gallons to a otherwise full tank of 93 octane. If adding to 91 octane, add 4 to 5 gallons of E85.

Start with as low of a tank of gas as possible.

 

[Terry@BMS]

For the JB4 it doesn't need to be perfect, around 6 gallons E85 rest pump is what I run. And its normally around E33.

We've got the sensor kits in stock which is a nice option though.