fuel
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fuel
A substance that provides energy through combustion to power engines, especially in vehicles. Examples include gasoline, diesel, or kerosene.
Die Preise für Kraftstoff sind in den letzten Monaten stark gestiegen.
Fuel prices have risen sharply in recent months.
The word 'Kraftstoff' (fuel) is made up of 'Kraft' (power) and 'Stoff' (substance/material). So it literally refers to a 'substance' that produces 'power'—a logical description for gasoline or diesel.
Moderne Motoren sollen möglichst wenig Kraftstoff verbrauchen.
Modern engines should consume as little fuel as possible.
'Kraftstoff' (fuel) is a general umbrella term. It includes various substances such as gasoline, diesel, kerosene, or even hydrogen that are used to power engines.
Flugzeuge benötigen einen speziellen Kraftstoff namens Kerosin.
Airplanes need a special fuel called kerosene.
Common verbs used with 'Kraftstoff' (fuel) are 'Kraftstoff sparen' (to save fuel), 'Kraftstoff verbrauchen' (to consume fuel), and 'Kraftstoff tanken' (to refuel).
Mit einem Elektroauto kann man viel Kraftstoff sparen.
With an electric car, you can save a lot of fuel.
energy
'Energie' and 'Kraftstoff' are related because fuel provides energy. 'Energie' is the more general term: it can mean electricity, heat, or driving power. 'Kraftstoff' is more specific and refers to a substance such as gasoline, diesel, or kerosene that is burned in an engine. Learners may confuse the words because in everyday language people say that a car needs energy. More precisely, however: the car needs fuel, and that fuel provides energy.
Vor der langen Fahrt kontrolliert er, ob noch genug Kraftstoff im Tank ist.
Before the long drive, he checks whether there is still enough fuel in the tank.
Die Solaranlage liefert genug Energie für das kleine Haus.
The solar system provides enough energy for the small house.