Flimsy

The flimsy, officially known as the Petrol, Oil and Water can, was a World War II fuel container used by the British Army.

They held 4 imperial gallons (18 L; 4.8 US gal) of fuel, which allowed them to be moved by a single person.

[5] The problem with the containers was the crimped or soldered seams, which easily split during transportation, especially over the rocky desert terrain in North Africa.

[2] The favoured use by soldiers for the flimsy was as a small stove which could be used to heat meals and tea for the crews.

[2] An alternative use for discarded fuel cans was to fill them with sand and use them to reinforce the walls of dugouts.

Crusader tank being refueled from a 4-gallon petrol tin
Spitfire being refueled from 4 gallon petrol tins at Luqa, Malta