Fuel – le carburant
(Pronounced carb-you-ron – the "n" is barely sounded)
To remember that Fuel is pronounced carb-you-ron (carburant) in French, use the following mnemonic:
Her body lacked fuel. Her friend said: "It's that low carb diet you're on! (carburant) Can I fill you up with some diesel or petrol?"

Carburant is masculine, so it's le carburant. Imagine our early learner filling up his car with fuel.

Examples of carburant (fuel) in a sentence
La hausse des prix des carburants pèse sur le budget des ménages.
(The rise in fuel prices weighs on household budgets.)
Le moteur rugit, consommant du carburant plus vite que prévu.
(The engine roars, consuming fuel faster than expected.)
La consommation de carburant réduit notre budget.
(Fuel consumption reduces our budget.)