# E85 Mix Ethanol Calculator — user reviews

> 5 indexed App Store user reviews of E85 Mix Ethanol Calculator by Adam Keninger, rated 3.10/5 from 7 ratings.

- Source: https://appshunter.io/ios/app/e85-mix-ethanol-calculator/id1473954071/reviews
- App overview in markdown: https://appshunter.io/ios/app/e85-mix-ethanol-calculator/id1473954071.md
- Rating breakdown: 5★ 3 · 4★ 0 · 3★ 1 · 2★ 1 · 1★ 2

## Most critical reviews (5 lowest-rated)

### 1/5 — Not good

*2022-09-23*

Don’t waste your money.

### 2/5 — Instructions?

*2020-10-08*

For the guy that has never used an app like this, you absolutely must have instructions.  The app is of no use if a person doesn’t know what exact values the app is asking for.   

I.E.  

line 3 - Where does one get those numbers? From the pump or from a test tube?  

Line 4 - Where does that number come from if one has already started the pump for line 3?

Add some instructions and information and you’ll get a 5 star review.

### 3/5 — Gas type.

*2021-02-03*

So is this gas type 91, or 93 ?

### 4/5 — How do I mix down from E98- E85?

*2020-04-07*

Every time I try the inputs I get “nan”, what am I doing wrong?

Currently have e98 and want E85. Mixing down using 91 octane. Tank capacity is 53L tank.

### 5/5 — Read the information in the App Store. Then use it!

*2020-04-16*

Easy app to understand. I use it to run e85 in my N54. Easy to read right at the pump

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-10.*