
With rising fuel costs and increasing environmental concerns, fuel economy is an important consideration when buying a car. Fuel economy, or fuel efficiency, refers to the distance a vehicle can travel per litre of fuel. It is influenced by factors such as engine size, weight, aerodynamics, tyre pressure, and driving habits. While fuel-efficient vehicles can save money on fuel costs in the long run, they also contribute to environmental conservation efforts by producing fewer emissions and reducing air pollution. Advancements in automotive technology have led to an array of choices, allowing buyers to prioritise fuel efficiency without compromising on their desired features or safety. As individuals become more conscious of their impact on the planet, the importance of fuel economy in the car-buying decision-making process will only continue to grow.
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What You'll Learn

Environmental concerns
One of the most tangible ways to do this is by choosing a car with better fuel economy. Cars with higher fuel efficiency produce fewer emissions, reducing air pollution and lowering their overall carbon footprint. This is becoming a more attractive option as the global focus intensifies on combating climate change, and individuals seek ways to contribute to environmental conservation efforts.
Fuel-efficient vehicles are also becoming more financially viable. With fuel prices at an all-time high and unpredictable fluctuations, a car that can travel more kilometres per litre can result in significant cost savings over time. This makes fuel economy a major financial consideration when buying a new car.
Additionally, government policies and regulations worldwide are emphasising fuel efficiency standards and offering incentives for purchasing fuel-efficient or low-emission vehicles. Many countries provide tax breaks or rebates for these purchases, further encouraging consumers to opt for more environmentally friendly options.
The advancements in automotive technology are also contributing to this trend. Hybrid and electric vehicles are becoming more accessible and popular, offering improved fuel efficiency without compromising on the desired features and preferences of consumers. As a result, the market is witnessing a shift towards more sustainable options, with fuel economy playing a pivotal role in the decision-making process when buying a new car.
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Cost savings
The importance of fuel economy when buying a car cannot be overstated, especially when it comes to cost savings. Fuel-efficient vehicles can save you a lot of money on routine fill-ups over time. With fuel prices at all-time highs, a car that can travel more kilometres per litre can substantially reduce the overall cost of ownership. For instance, upgrading from a 2017 Honda Odyssey (21 mpg overall) to a 2022 Odyssey (22 mpg) would save $102 a year in fuel. A similar switch from a 2017 Kia Sedona (20 mpg) to a 2022 Kia Carnival (21 mpg) would save $112 a year. However, the most significant savings can be made by choosing a hybrid vehicle. For example, trading in the Odyssey or Sedona for a new Toyota Sienna with a hybrid powertrain (36 mpg overall) could save $933 and $1,045, respectively, in fuel costs each year.
In addition to the long-term cost savings, fuel-efficient cars also retain their value better in the resale market. As fuel prices continue to rise, prospective buyers are increasingly prioritising vehicles with better fuel efficiency ratings, making it easier to sell a fuel-efficient car in the future. Furthermore, governments around the world are introducing policies and regulations that emphasise fuel efficiency standards. Many countries offer incentives such as tax breaks or rebates for purchasing vehicles with high fuel efficiency or low emissions. For example, plug-in hybrid-electric vehicles (PHEVs) often qualify for a federal tax incentive of up to $7,500.
While choosing a fuel-efficient vehicle is a great way to save money, it's also important to maintain your car properly to ensure optimal fuel economy. Regular maintenance can help improve fuel economy over the first few years of ownership, and a well-maintained vehicle can continue to save fuel even after ten years. Simple actions like using a tire pressure gauge to ensure your tires are inflated to the correct pressure can improve your gas mileage by up to 3.3%. Removing unnecessary weight from your vehicle and monitoring your car's performance and miles per gallon can also help maximise your fuel economy.
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Resale value
The fuel economy of a car is an important consideration when buying one, as it impacts its resale value. The type of fuel a car uses can significantly affect its resale price.
Petrol cars are extremely popular in the UK due to their lower purchase prices and wider acceptance among buyers, resulting in lower initial depreciation rates. However, concerns about carbon emissions and potential future restrictions contribute to lower resale values for diesel cars. Electric and hybrid vehicles, on the other hand, may retain their value better due to their eco-friendliness and advanced technology, especially if they are still under warranty.
Market dynamics and consumer preferences play a crucial role in resale value. While diesel vehicles remain a viable option for buyers seeking long-term durability and fuel economy, the growing emphasis on emissions reductions and the shift towards electric and alternative fuels are challenging diesel's dominance. More fuel-efficient cars tend to have higher resale values as consumers become increasingly aware of the environmental impact of their choices.
Location also influences the resale value of a car. For example, in technology hubs like Toronto and Vancouver, there is a higher demand for electric and hybrid cars due to government incentives, resulting in potentially higher resale prices. In contrast, in mining and agriculture-focused regions like Alberta and Saskatchewan, trucks retain their value better due to industrial use. Suburban and family-oriented regions show a preference for SUVs and minivans, while in cities with robust public transit, compact and fuel-efficient cars are more sought-after.
Other factors that can impact a car's resale value include its condition, age, mileage, and maintenance history. Well-maintained cars, regardless of fuel type, generally command higher prices. Newer models tend to be more expensive, and lower mileage is usually associated with a higher resale value. However, it's important to consider the type of mileage, as city driving with frequent stops and starts can result in more wear and tear than highway driving.
When it comes to specific car models, the Toyota Corolla, known for its fuel efficiency, has consistently improved its fuel economy over the years. The previous-generation Corolla (2003) achieved 25/34 mpg, while the current-generation (2013) boasts 26/34 mpg. The Prius, a hybrid vehicle, is also praised for its impressive fuel economy, with ratings of 48/45 mpg. The Golf TDI, a diesel-powered Volkswagen, is another example of a fuel-efficient car, rated at 28/40 mpg.
In summary, the fuel economy of a car is a significant factor in determining its resale value. The type of fuel, market dynamics, location, condition, age, mileage, and maintenance history all play a role in how well a car retains its value over time.
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Government incentives
The importance of fuel economy when buying a car is reflected in the various government incentives offered to promote the purchase of fuel-efficient vehicles. These incentives aim to reduce the upfront costs of more expensive, environmentally friendly cars and encourage a shift towards lower-emission transportation.
Tax Credits
One of the most common government incentives is the offer of tax credits for the purchase of fuel-efficient or electric vehicles (EVs). The federal government provides tax credits for buying new plug-in electric or fuel cell vehicles, with certain eligibility criteria regarding the vehicle's price, weight, and battery capacity. The credit can be claimed by filing Form 8936 with the Internal Revenue Service (IRS). The federal tax credit can be up to $7,500, and it can be applied directly as a discount on the car from a qualified selling dealer.
State-Level Incentives
In addition to federal incentives, many states have their own programs to encourage the adoption of fuel-efficient vehicles. These incentives can include additional tax credits, rebates, reduced vehicle taxes, or discounts on insurance and registration fees. For example, California offers rebates of up to $2,500 through the Clean Vehicle Rebate Project (CVRP) and grants carpool lane access to select electric vehicles. New York offers a state-level rebate of up to $2,000 on top of the federal tax credit. Colorado provides grants of $5,000 for purchasing EVs, while Connecticut offers rebates of up to $3,000 through the CHEAPR program. Delaware provides a rebate of $2,200 for purchasing or leasing an EV and $1,100 for converting a combustion engine to electric.
Non-Monetary Incentives
Some states also offer non-monetary incentives, such as free parking for electric vehicles or access to HOV lanes for EVs and plug-in hybrids. Additionally, many states provide incentives for installing EV charging stations at homes or businesses, with federal credits of up to $1,000 for residential installations and up to $30,000 for commercial installations.
It is important to note that these incentives may change over time, and specific eligibility criteria must be met to qualify for the credits and rebates.
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Fuel economy maintenance
Fuel economy is an important consideration when buying a car, and there are several ways to maintain and improve it. Firstly, it is crucial to keep your vehicle well-maintained. The Environmental Protection Agency tests vehicles with 5,000 miles on the odometer, and a well-maintained vehicle should improve its fuel economy over these initial years of ownership. Tuning up a vehicle that is drastically out of tune can improve fuel economy by 4%.
Secondly, fuel efficiency is influenced by several factors, including engine size, weight, aerodynamics, tyre pressure, and driving habits. To improve fuel economy, avoid placing items on a roof rack, and remove unnecessary items from the trunk to reduce weight. Monitoring your car's performance and miles per gallon can help you identify any issues. Note the odometer reading and the number of gallons purchased, and calculate your car's mileage by dividing the miles travelled between fill-ups by the number of gallons used.
Additionally, using a tyre pressure gauge to ensure your tyres are inflated to the correct pressure can improve your gas mileage by up to 3.3%. Regular gasoline is just as fuel-efficient as premium, so unless your vehicle is designed for premium fuel, regular gasoline will not impact your fuel economy.
When buying a new car, advancements in automotive technology offer a range of fuel-efficient options. You can choose a hybrid, a smaller vehicle, or an electric car to improve fuel economy. Conventional gasoline-powered cars are also becoming more efficient, thanks to advances in engine technology, aerodynamics, and computer controls.
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Frequently asked questions
Fuel economy is very important when buying a car, especially with rising fuel prices and increasing environmental concerns. A car with good fuel efficiency can save you a lot of money in the long run.
Cars with good fuel efficiency can travel more kilometres per litre of fuel, reducing the overall cost of ownership. With fuel prices at an all-time high, choosing a fuel-efficient car can result in significant cost savings over time.
Cars that consume less fuel produce fewer emissions, contributing less to air pollution and reducing their overall carbon footprint. Choosing a fuel-efficient car is a tangible way for individuals to contribute to global efforts in combating climate change.
There are several ways to improve the fuel economy of your current car. Firstly, avoid carrying unnecessary weight and remove bulky items from your trunk. Additionally, ensure your tires are inflated to the correct pressure, as this can improve your gas mileage. Regular maintenance of your vehicle can also help maintain and improve its fuel economy over time.











































