Octane rating on Fillup?

[DastardlyDan]

Here is a suggestion for the site. Sorry if it has been brought up before; this is an errant thought I'm putting in before I head to work, so I don't have time to search the forum for existing threads. And I don't know if there is a better place to post this idea. If there is one, please let me know.

Why not add a place to put the octane rating of the gas you bought on each fillup? I've done this myself to keep track how different grades of gas have affected my gas mileage in my cars.

As it stands now, I keep that information in my notes. However, since I put in what maintenance I do to the car in the notes, they are getting pretty clogged up.