[Brad from Tennessee]

From COMMENTS blog at end of the article:

They re LYING.

1. The bulk storage tanks underground are VENTED TO THE ATMOSPHERE. Tens of thousands of gallons in the storage tank are vented to ATMOSPHERE, what the HELL difference does a half ounce of gas outside make?

2. topping up DOES NOT cause spills or excess emissions from the purge system in a car. The pumps are designed to shut off the instant the fuel reaches the filler neck inside the tank.

Liberals = Liars

As in the bald faced lie about unplugging the cell phone charger, they take a small bit of outdated information and try to apply it to today. Modern cell phone chargers are SWITCH MODE POWER SUPPLIES that dont draw any power when not charging. They are as good as unplugged when the phone is disconnected.

[Axenolith]

Actually, the shutoff occurs with significant capacity left in the tank, 4-6 gallons in our work Fords and over 2.5 in my Chevy.

I always manually retract the vapor hood and visually fill to the top. It's difficult on some pump styles that have a tight trigger or the long boot, but most of them are set to dispense at a graduated rate.

I LIKE having an extra day between fills, or the ability to get 525+ miles out of a tank on my truck on a road trip...