I'm playing whole day with it. I've even registered at Samsung Developers site to get access to devices. I've tested all of them. No issue. But they've got a little bit newer version of Android if this is Android 5.0.

I've Googled this issue and it's on official Android reports - but it's closed and marked as Samsung bug (not Google).

Mail me I'll send you a little bit changed .apk to test.

Could you send me an email (to this one from Play Store). I'll send you .apk and you'll tell me if it's working. I'm working on this issue but I can't test it because like I said I didn't have this problem.

I'm reading about it and it looks like it's Samsung issue. Looking for a workaround.

Thanks. OK. This looks bad. I can't reproduce it on my devices. I've got 5 devices. From Samsung at the moment S2. So probably this is something in newer versions of Samsung's API.

Of course this should be fix. I need to find what's going on.

Can you give me more details about your android version. Number from settings.

Thanks for your report. Finally I've got someone. I don't what going on with this. I can' reproduce this bug. Can you tell me full path - what are you doing. From the start of the app? This should be fixed.

Go to Stats screen to recalculate it. This is cache issue.
Stats will recalculate it again and you should have good values.

Yes. I'm using it the same way. If you want to use Fuelio in Slovak you need to switch your phone to Slovak.

There's no need to download them manually. Languages are detected by Android (this is how Google wants to be working). So if your language in your phone is English - you'll have English UI. If you language is German, you'll have German UI etc...

Insert it as new vehicle (with old data) and stary new log for current fillups.
You can easily create in Excel/Libre Office CSV and import it. Here's sample file:
https://dl.dropboxusercontent.com/u/6838779/2014-sample-fuelio.csv

This is strange. Do you have missed fillups? Can you provide your file. This is probably data related and I should check it.