Hi. First, thanks for this great webapp. Definitely beats the pants off the fuel economy program I had been using.
However, at some point you added a bunch of options while entering a fuel up, such as octane, tire pressure, etc. This is great, but I don't need that level of detail. The problem is that, especially on mobile (which I suspect is how the vast majority of your users are entering fuel ups), the fuel up page is very cluttered with all these extra fields.
Can there be an option to hide them, either by not showing them in the first place, or at least hiding them in an "expansion" type control?