Fuel mix cheat sheets

[Enki]

Seasonal Blends By Region





For 70%, 75%, 80%, 85% seasonal blends of e85 (ethanol content by volume), also factoring in e10 pump gas. Please let me know if you guys want other blends of e85/e10 done up.

E85 beta scalar cheat sheet:


***NOTE*** This cheat sheet is based on the percentage of ethanol in the tank, NOT the percentage of e85 in the tank (ethanol content by volume). See below sheets for actual %E for use in the above table.


E70 mix cheat sheet:


E75 mix cheat sheet:


E80 mix cheat sheet:


E85 mix cheat sheet:


Actual spreadsheet (which can be modified for other seasonal blends and also has the scalar cheat sheet within it) is also attached now.

[Enki]

The XLS for whomever wants more granularity, etc.
Made in OpenOffice, not sure if it will have issues with Excel or whatnot.

Edit: Use the XLS in the OP.

[GoSpeed3Go]

cool man. was wondering where my 2/5 was.

[Enki]

Looks like about 19% on winter blend.

[GoSpeed3Go]

Originally Posted by Enki Looks like about 19% on winter blend.

i dont think they switch in cali because of the mild weather.

[Enki]

I Just realized I should probably post up my method for filling up; the rule of 3.

MS3 has 14.5 gallon tank, but reads E at about 2 gallons; I figure each quarter tank is 3 gallons, making 50/50 mix 1.5 gallons per quarter tank or .75 gallons per 1/8th, with half a tank obviously being 3 each and 3/4 fill-up being 4.5.

While you may not fill all the way up to the neck with this method, you are less likely to fuck up your mix when doing so.

[Enki]

Added E85 beta scalar cheat sheet.

[Enki]

Everything now in the OP for ease of perusal.

[Boosted Beluga]

Sweet thank you.

[Dano]

This should be stickied.

thanks Enki!

[SRTie4k]

I might help to change your vocabulary in the first post a little to specify "by volume" as opposed to "by ratio of ethanol to gas".

Otherwise, very helpful, thanks!

[superskaterxes]

stuck

[Enki]

Updated OP with link to seasonal blends by region information for more accurate calculation of mixes based on date.

[Mfinlay04]

Great thread. This shit is priceless.

[RichieRichness]

Originally Posted by Mfinlay04 Great thread. One noob question, just to clarify if one has their MAF tables calibration correctly for pump gas. If we wanted to run some mix of e85 we would just multiple the entire MAF table by X. Whereas X is the value in your tables which relates to the ratio we will be running?

No, the purpose of this thread is to dial in your Injector Control Tables.

[Enki]

[Mfinlay04]

Originally Posted by RichieRichness No, the purpose of this thread is to dial in your Injector Control Tables.

As yes after reading the thread on the computer I see there is a FSG and Scalar for the percent of ethanol used.

[sidekick]

Some people may also find THIS calculator helpful.

[Enki]

Unfortunately, that site won't tell you the scalars for the AP, and the mileage shit doesn't apply because we can tune for MUCH better mileage on e85 than a normal, un-tuned flex-fuel vehicle can get (basically close to stock mileage if you keep your foot out of it).

[sidekick]

Originally Posted by Enki Unfortunately, that site won't tell you the scalars for the AP, and the mileage shit doesn't apply because we can tune for MUCH better mileage on e85 than a normal, un-tuned flex-fuel vehicle can get (basically close to stock mileage if you keep your foot out of it).

It's very useful for figuring out your ethanol mix though.

[Enki]

Ok...

But the screenshots up top are pretty much laid out so you don't have to type anything into a calculator.

[Erich]

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Fuel mix cheat sheets