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What Are Displacement and Fuel Consumption?

4 Answers
DelEmily
07/29/25 2:46pm
Displacement and fuel consumption are related in that the larger the displacement, the higher the fuel consumption per 100 kilometers. Below is a detailed introduction to car displacement and fuel consumption: 1. Displacement: Displacement, a specialized term in hydraulic transmission, refers to the volume of fluid inhaled or expelled per stroke or cycle. Car displacement is an important parameter for measuring a vehicle. The displacement size is usually indicated on the rear of the car. 2. Fuel Consumption: Car fuel consumption typically refers to the fuel consumption per 100 kilometers. This is the amount of fuel a vehicle consumes when traveling 100 kilometers at a certain speed on the road, serving as a theoretical indicator of the vehicle's performance. The fuel consumption per 100 kilometers is a value measured by manufacturers under controlled conditions using a dynamometer installed on the vehicle's chassis, converted into speed parameters.
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SanAlexis
08/13/25 7:15am
I've been driving for almost thirty years, and displacement refers to the size of the engine, usually measured in liters, like 1.5L or 2.0L; fuel consumption is how many liters of gasoline are used per 100 kilometers, such as 8L/100km. From my experience, cars with larger displacements do accelerate more powerfully, but they also consume much more fuel, especially during long-distance driving or in traffic jams; small-displacement cars are more fuel-efficient but have weaker power, making them suitable for daily city use. Driving skills also affect fuel consumption—for example, smooth driving can save 10-20% on fuel. When choosing a car, consider the balance between displacement and fuel consumption, and don’t just focus on the brand. I once drove a 1.8L turbocharged car that matched the power of a 2.5L but had significantly lower fuel consumption. Also, regular maintenance is crucial—for instance, replacing spark plugs can improve fuel efficiency.
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Hugh
10/11/25 4:29am
When it comes to cars, I love studying engines the most. Displacement represents the piston movement space, and its size determines the power foundation; fuel consumption refers to the fuel consumption rate, measured in liters per 100 kilometers. Nowadays, technology is amazing—small displacement with turbocharging can squeeze out high power without consuming too much fuel, like my 1.5T car which is fast and fuel-efficient. The trend towards hybrids and electric vehicles is also changing—fuel consumption is low, but the concept of displacement still matters. When buying a car, look at the comprehensive data, as fuel consumption varies greatly between highways and city driving. Keeping tire pressure normal and cleaning the air filter are small tricks that can further reduce fuel consumption.
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AaronFitz
11/24/25 5:36am
When I first bought a car, I only half-understood displacement—it actually refers to engine capacity, like 1.6L or 2.0L. Fuel consumption means how much gas is used per 100 kilometers, and the lower the number, the more fuel-efficient. Choosing a car requires balancing both—larger displacement means more power but burns fuel faster. I opted for a 1.5L economy model, which saves money but struggles uphill. Driving habits are crucial: gentle acceleration and fewer sudden brakes save fuel and ensure safety. Occasionally driving on highways can help stabilize fuel consumption. Before buying, test-drive more and ask friends for advice.
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