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A detail of the fuel cap that many overlook

This trick is not just a matter of convenience

In the world of high-tech cars, dominated by touchscreens, electric drives and autonomous systems, it is easy to miss elements that were perfectly invented decades ago. One of these small but ingenious details is the mechanism for securing the fuel cap when it is in the open position.

At first glance, it is a simple flap that you open to fill up with fuel. But how many times have you had to hold the cap with your hand or let it hang and swing on the paintwork of the car while filling up? In these moments, we unknowingly ignore the elementary solution that engineers have foreseen.

Take a closer look at the inside of the fuel cap – On most cars on the road today, you'll find a small hook, groove, or even a specially shaped socket designed specifically to hold the cap itself. On many models (especially from Asian and European manufacturers), this feature is so elegantly integrated that it seems like part of the design, rather than a functional element.

This trick isn't just a matter of convenience. It has a purpose, the main one being to protect the paint. The cap, especially when it has a cable that holds it to the body, doesn't hit the paint or scratch it in strong winds or careless driving.

Hygiene: The cap is dirty. Securing it in a specific location keeps it out of your hands and off the ground at the gas station, making for a cleaner fueling experience.

Safety: You know exactly where the cap is when you're filling up, and there's no risk of forgetting it on the roof or on the pump.

This is one of those little, invisible pieces of automotive design genius that aren't part of expensive equipment packages, but are built into every car to make our daily lives a little easier. Next time you stop at a gas station, pay attention to this small but important feature. We're sure you'll appreciate it.