I just posted a picture of my current tank.
Here's the link. I'm only 400 miles into it and am at 82.7 mpg on the gauge.
I'm hoping I'll end up at 80+ mpg. We shall see.
If you check out the picture especially notice the fuel gauge.
The Insight is one of the few cars where you would be at 1/2 a tank of gas after travelling 400 miles!!!
My previous best tank was 8/9/04, 77.7 mpg calculated. (81.5 on the dash.) Even if I don't break 80mpg, hopefully I'll beat my previous record.
I think it will be a few weeks before I'll know the outcome because I am borrowing a different car all next week.
Wish me luck!