Some Gas Cans are actually a little complicated! Here is an example of one and how to use it!
Here is an example of a gas can with a safety device on the nozzle.
Remove the gas can cap and grasp the red sleeve. The sleeve is spring-loaded, so you will notice some resistance.
Twist the sleeve until it aligns with the plastic piece on the bottom half of the nozzle. Pull the sleeve towards the can until it connects with the plastic piece. When the sleeve is retracted the opening on the end is visible, and the gas will only dispense when the sleeve is in this position. Again, it is spring-loaded, so as soon as you let go, the sleeve will return to its original position.
Gas cans have changed a lot over the years. The old pour spout cans have been replaced with varieties that not only keep the kids safe, but the environment too.
Gas cans like the one above are designed to keep the little kids in the neighborhood from getting their kicks off the fumes. There is typically a button you push or pull while pouring. This also prevents the gas from spilling if transported in the trunk of your vehicle. The can shown has a pouring nozzle attached to the can.
This works similar to the safety lock cans, but vents the fumes back into can to reduce emissions.
Not only are diesel cans a different color most of the time, but the word diesel is printed on the outside.