Most cars, 99.9%, have a fuel theft protection screen. My car, since 1991, has a screen before the fuel. I wonder how some people claim that fuel was stolen from their cars.

Perfect product, it does exactly what it says, the water flow is quite satisfactory, be careful to install the pump in the right direction (otherwise there won't be a continuous flow of liquid) and there should be a small height difference between the containers.

It is a very nice pump for transferring fuel easily and effortlessly. It contains small valves in the balloon that prevent the fuel from returning, and once it reaches the outlet, a natural flow is achieved as long as there is an imbalance between the two fuel tanks. The diameter of the plastic tube achieves a satisfactory flow.

While it sucks in as much as you press it, it doesn't have quick recovery and you don't achieve natural flow (you have to keep pressing continuously). To empty a 12-liter car fuel tank, my fingers died.