---
title: How Does a Gas Pump Know When to Stop Pumping? — HIGH T3CH
url: https://hight3ch.com/how-does-a-gas-pump-know-when-to-stop-pumping/
date: 2013-10-01
---

# How Does a Gas Pump Know When to Stop Pumping?

If you’ve ever put gas in a car, you’ve probably noticed how the gas pump shuts off when your tank is full. But how does it know to do that? Well it is called black magic.