This is the 9376th most frequent French word.
diesel
Diesel: A type of fuel derived from petroleum, used in diesel engines.
Here, 'diesel' refers to the type of fuel used by the engine of the truck.
Le moteur de ce camion fonctionne au diesel.
The engine of this truck runs on diesel.
In this sentence, 'diesel' is used as an adjective to describe cars that use diesel fuel.
Marcel préfère les voitures diesel pour leur efficacité énergétique.
Marcel prefers diesel cars for their fuel efficiency.
'Diesel' in this example denotes the commodity, specifically the fuel itself, whose price is being referenced.