These days, your gas gauge may seem like the most important part of your car. Or at least the most consistently expensive.
Gas prices just keep climbing so now more than ever, people are paying attention to their gauges. And it turns out the gauges are lying.
They stay longer on full or "F" and then gradually increase their decrease so to speak. They needle moves down quicker and quicker as it approaches empty or "E."
When it finally gets to empty, it again sits there for a little while before it alerts the driver that they need to fill up the tank.
This behavior is in response to consumer surveys. Obviously people like to have a full tank for as long as possible. And they don't really want to be out of gas when their gauge hits E.
They want a little cushion time. So car companies have adapted to these desires. Just know though, your gauge is lying to you.