Ask HN: Does anyone else notice that gas runs out faster than usual

- gas smells less like gas - not getting as much mileage as usual

I filled up my car and I have a habit of resetting my mileage tracker (next to odometer) to see how many miles I get out of a full tank.

I've noticed that I get much less gas than usual for the same number of bars.

What can I do to make this more concrete? Has anyone else noticed this?