Caro Flex (beta)

This app help you to decide refuel a flex car with ethanol or gasoline in Brazil.

Here in Brazil we have the so-called Flex car that accept ethanol or gasoline as fuel.

To decide refuel on ethanol or gasoline, we make a simple math: if the price of ethanol is less than 70% of the price of gasoline refuel with ethanol, otherwise refuel with gasoline.

For this I created this free app for Android to help you quickly calculate the advantage of refuel with ethanol or gasoline. Simply enter the price (in BRL - R$) of both fuels and calculate: the app shows you what is the better choice.

If you travel to Brazil, it is quite likely to drive a Flex car. So this app will help you.

(Do not miss the next update: I'm complementing the app with a record of refueling.)