"Missed a fuelling" option
 

Can you add a checkbox on the "Add a fuel-up" screen that indicates that there's been (at least) one fuel-up that hasn't been entered since the last one, so this fueling shouldn't be used for MPG calculations?

I've just imported a bunch of olde data for my Civic, which I had kept on MyMileMarker until April this year.

Since then, my car has been driven from Boston to San Francisco.

I fear that when I enter my next fuelling, it's going to see that I've driven about 4,000 miles on "a tank" of gas, and decide that my little Civic somehow does 400 MPG.

That's a great suggestion! I'm not the primary driver of our car, so it's possible that my wife will fill up without letting me know, and so it'll be great to indicate that on the screen!

+1 Absolutely. I had one time where I lost my receipt, didn't get to enter it in, and that will screw me up bigtime.

This should be a huge priority in that long list of huge priorities!

An excellent plan.

When I was logging it myself I would tell the overall average to ignore any fillup that was 50% (or more) better than the average. That worked out pretty well.

Excellent point. We'll add this ASAP.

We just added a way to tell Fuelly about missed fuel-ups.