Ameer Randolph
Fuel efficiency is a key consideration for car buyers, with modern engines becoming increasingly efficient thanks to turbochargers and hybrid technology. While driving style and engine type (petrol, diesel, or hybrid) impact fuel efficiency, some cars are notoriously fuel-hungry. So, which car consumes the most fuel? Let's take a look at some of the vehicles with the highest fuel consumption to answer this question.
| Characteristics | Values |
|---|---|
| Car with the highest fuel consumption | Bentley Meteor |
| Fuel consumption of Bentley Meteor | 27 litres per 100 km |
| Cars with high fuel consumption | Hummer H2, Chevrolet Tahoe/Cadillac Escalade, Lincoln Navigator Ultimate, Ford Expedition EL, Toyota Land Cruiser, Mercedes Geländewagen, Range Rover, Jeep Grand Cherokee SRT8 |
| Fuel consumption of Hummer H2 | 28 litres per 100 km |
| Fuel consumption of Chevrolet Tahoe/Cadillac Escalade | 21 litres per 100 km |
| Fuel consumption of Toyota Land Cruiser | 20 litres per 100 km |
| Fuel consumption of Mercedes Geländewagen | 22 litres per 100 km |
| Fuel consumption of Range Rover | 12.8 litres per 100 km |
| Fuel consumption of Jeep Grand Cherokee SRT8 | 14 litres per 100 km |
| Factors affecting fuel efficiency | Type of engine, driving style, air-conditioning, revs and speed |
| Most fuel-efficient cars of 2024 | Mitsubishi Mirage, Honda Civic, Hyundai Elantra, Toyota Corolla, Nissan Versa |
| Most fuel-efficient cars of 2025 | Kia Niro, Hyundai Elantra Hybrid, Toyota Prius Prime, Toyota Corolla Hybrid, Toyota Camry Hybrid |
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What You'll Learn
- Fuel-hungry models: Toyota Land Cruiser, Mercedes Geländewagen, and Range Rover
- Four-wheel drives: Hummer H2, Chevrolet Tahoe, and Cadillac Escalade
- Fuel efficiency: miles per gallon (MPG) ratings
- Hybrid cars: Toyota Prius, Hyundai Elantra, and Kia Niro
- Fuel-saving tips: turn off air-conditioning, avoid short trips, and steady speed
Fuel-hungry models: Toyota Land Cruiser, Mercedes Geländewagen, and Range Rover
Fuel-guzzling cars are often four-wheel drives, with large engines that burn through fuel at alarming rates. Here, we will look at three such fuel-hungry models: the Toyota Land Cruiser, the Mercedes Geländewagen, and the Range Rover.
The Toyota Land Cruiser is a petrol-powered beast, boasting a 5.7-litre V8 engine. This engine consumes, on average, over 20 litres per 100 kilometres travelled. To put that into perspective, this means that the Land Cruiser will cost you a tank of fuel every 400 kilometres or so. While this may not be an issue for those who only use their car occasionally, for those who travel long distances or rely on their car daily, the cost of fuel will quickly add up. Interestingly, the Land Cruiser's engine is designed to be flexible regarding fuel type, which is a small comfort for owners. To improve fuel efficiency, drivers can ensure their tyres are at the manufacturer's recommended pressure and avoid using air conditioning, which consumes a lot of energy.
The Mercedes Geländewagen is another four-wheel-drive car with a thirst for fuel. In a combined cycle, this car consumes 22 litres per 100 kilometres, similar to V8 and V12 engine modifications. It is worth noting that this figure refers to customised AMG versions, and standard diesel engine versions are likely to be more fuel-efficient. While Mercedes vehicles are recommended to be fuelled with premium fuel, this is not a requirement, and regular gas can be used without causing damage.
Finally, the Range Rover, a British icon, is also a fuel-hungry machine. Whether in its classic long-bodied aristocratic form or a modern hardcore sports incarnation, the Range Rover consumes 12.8 litres of 95 octane unleaded petrol per 100 kilometres. However, this is likely to increase to 18 litres in urban driving conditions, according to specifications.
So, if you are looking for a car with good fuel economy, these three models are probably not your best bet. Instead, look for smaller cars with smaller, more fuel-efficient engines, and consider the fuel consumption data provided by manufacturers and other users.
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Four-wheel drives: Hummer H2, Chevrolet Tahoe, and Cadillac Escalade
When it comes to four-wheel drives, the Hummer H2, Chevrolet Tahoe, and Cadillac Escalade are notable mentions for their fuel consumption.
The Hummer H2 is a large and powerful vehicle, known for its off-road capabilities and rugged design. While it offers impressive performance and versatility, its fuel economy is not its strong suit. With a large engine and heavy frame, the H2 is likely to have a significant fuel consumption rate, especially in urban settings or when used for off-road adventures.
The Chevrolet Tahoe is another large SUV that offers ample space and powerful performance. According to various sources, the Tahoe's fuel consumption varies based on the engine size and driving conditions. For the 5.3 and 6.2 engines, users have reported fuel efficiency ranging from 15 to 19 miles per gallon (mpg) in cities and on highways, respectively. The diesel option seems to be more fuel-efficient, excelling on highway miles, but it comes at a higher cost.
The Cadillac Escalade, known for its luxury and performance, offers various configurations, including two body styles, three engines, and five trims. Each configuration has slightly different gas mileage ratings. While the Escalade promises a premium driving experience, its fuel economy is a concern for potential buyers, especially with the rising gas prices.
Among the three vehicles mentioned, the Chevrolet Tahoe and Cadillac Escalade offer a range of options that can impact their fuel consumption. The Hummer H2, with its robust build and performance, is likely to be a fuel-intensive choice. Ultimately, while these four-wheel drives offer power and versatility, they may not be the most economical choices in terms of fuel efficiency.
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Fuel efficiency: miles per gallon (MPG) ratings
Fuel efficiency is a key consideration when choosing a car, especially with rising fuel costs. The standard measure for fuel efficiency is miles per gallon (MPG), which indicates how far a car can travel with one gallon of fuel (approximately 4.5 litres).
MPG can vary significantly depending on the driver's habits and the car's features. For example, aggressive acceleration and frequent short trips can reduce fuel efficiency. Additionally, cars with larger and more powerful engines, such as V8 or V12 engines, often consume more fuel. Four-wheel-drive vehicles are also known to be fuel-hungry, with some models like the Hummer H2 consuming 28 litres per 100 km. Similarly, luxury cars like the Bentley Brooklands and Maybach 57, with their large engines, tend to have lower MPG ratings.
On the other hand, modern cars with turbochargers and hybrid technology have improved fuel efficiency. Hybrid cars combine a traditional engine with an electric motor, typically consuming less fuel and emitting less CO2. Diesel engines are also generally more fuel-efficient than petrol engines, although they may not be as popular with buyers.
Fuel efficiency standards and priorities vary across the world. For instance, the U.S. government provides resources through FuelEconomy.gov, administered by the Oak Ridge National Laboratory, to help consumers compare fuel economy, fuel costs, and safety ratings of vehicles. Additionally, they offer tips to improve MPG and information on alternative fuel options, such as hybrid and electric vehicles.
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Hybrid cars: Toyota Prius, Hyundai Elantra, and Kia Niro
Fuel efficiency is an important consideration when choosing a car, especially with rising fuel costs and increasing environmental concerns. Hybrid cars are known for their efficiency, and among the top hybrid models are the Toyota Prius, Hyundai Elantra, and Kia Niro.
The Toyota Prius is a leader in hybrid technology and has recently broken a Guinness World Record for fuel efficiency. On a coast-to-coast drive from Los Angeles to New York, the Prius achieved an impressive 2.53 l/100 km, showcasing its superior fuel efficiency across diverse terrains and conditions. This record further emphasizes Toyota's commitment to sustainability and innovation in hybrid technology.
The Hyundai Elantra, a popular hybrid model, offers exceptional fuel economy as well. According to owners' reports, the Elantra consistently achieves high mpg rates, even on longer highway trips. For example, one owner reported achieving 50 mpg on highway trips, while another reported 45.1 mpg on a 229-mile trip. The Elantra's hybrid engine and efficient design make it a strong contender in the hybrid car market.
The Kia Niro, available as a standard hybrid or a plug-in hybrid, is another fuel-efficient option. The EPA rates the Niro Hybrid at up to 53 mpg city and 54 mpg highway for the base LX trim, while other trims are rated slightly lower at 53 mpg city and 45 mpg highway. The plug-in hybrid variant offers an electric driving range of around 33 miles per charge, making it a practical choice for commutes and errands. The Kia Niro combines quirky exterior styling with a modern interior, creating a unique and appealing package.
While these hybrid cars are designed for efficiency, actual fuel consumption may vary depending on driving conditions, terrain, and individual driving habits. However, the Toyota Prius, Hyundai Elantra, and Kia Niro all offer impressive fuel economy, contributing to both environmental sustainability and cost savings for their owners.
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Fuel-saving tips: turn off air-conditioning, avoid short trips, and steady speed
Fuel efficiency is a key consideration for any car owner, especially with the rising costs of fuel. While some cars are more fuel-efficient than others, there are also ways to improve the fuel efficiency of your vehicle. Here are some tips to save fuel, centred around turning off air-conditioning, avoiding short trips, and maintaining a steady speed.
Turn off air-conditioning
Air conditioning can increase fuel consumption by as much as 20%. It is more fuel-efficient to open the windows when driving at lower speeds, especially in the city. However, when driving at higher speeds, it is recommended to use air conditioning to reduce wind resistance caused by open windows. If you do use air conditioning, avoid setting it to maximum unless necessary, as a moderate level can still provide cooling without using as much fuel.
Avoid short trips
Short trips can be a "fuel guzzler" because your engine needs time to warm up. Combining errands into one trip instead of multiple short journeys allows the engine to stay warm and run more efficiently. Planning your routes ahead of time helps avoid unnecessary detours and stop-and-go driving, which increase fuel consumption.
Maintain steady speed
Maintaining a steady speed and accelerating gently is key to saving fuel. Driving above 80 km/h with the windows down causes wind resistance, which costs you more fuel. Using cruise control for highway driving can help improve fuel efficiency by preventing unnecessary fluctuations in speed. Additionally, speeding significantly impacts fuel consumption. For every 5 mph over 50 mph, your car’s fuel efficiency decreases.
Other fuel-saving tips include removing any unused roof racks or boxes to reduce drag and keeping your tyres at the correct pressure to avoid causing more rolling resistance, which makes your engine work harder.
While some cars, like the Bentley Meteor, Hummer H2, and Toyota Land Cruiser, are known for their high fuel consumption, implementing these fuel-saving strategies can help improve the efficiency of any vehicle.
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Frequently asked questions
The Bentley Meteor is officially recognised as "the most fuel-hungry" vehicle in the world. Other fuel-hungry models include the Hummer H2, the Toyota Land Cruiser, the Mercedes Geländewagen, and the Range Rover.
A car's fuel efficiency is influenced by its engine type, with most modern car engines being efficient due to turbochargers and hybrid technology. Diesel engines are typically more fuel-efficient than petrol engines. Additionally, a car's fuel economy depends on the driving style and habits of the driver.
Some of the most fuel-efficient cars include the Mitsubishi Mirage, Honda Civic, Hyundai Elantra, Toyota Corolla, and Nissan Versa. Hybrid vehicles, such as the Toyota Prius, Kia Niro, and Toyota Corolla Hybrid, are also known for their excellent fuel economy.
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