E85 Mix Ethanol Calculator App Reviews

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

So is this gas type 91, or 93 ?

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.