Sylvie Willis
Making your car faster and more fuel-efficient is a complex task that requires a combination of proper maintenance, driving behaviour adjustments, and vehicle modifications. While some techniques may require significant changes, others are simple and easy to implement. For example, regularly checking your tyre pressure and keeping your tyres properly inflated can improve your gas mileage by up to 3%. Additionally, driving smoothly by avoiding rapid acceleration and heavy braking can significantly improve fuel efficiency. This includes maintaining a steady speed, using cruise control, and driving in the highest gear possible without straining the engine. These practices not only save fuel but also reduce wear and tear on your vehicle.
How to make your car faster and fuel-efficient
| Characteristics | Values |
|---|---|
| Check tyre pressure | Keep tyres properly inflated to improve fuel economy by up to 3% |
| Remove unnecessary items | Remove items from the boot, trunk, and passenger seats to reduce weight and improve fuel economy |
| Use cruise control | Maintain a constant speed to minimize fast acceleration and hard braking, improving fuel efficiency by up to 6% |
| Avoid aggressive driving | Avoid speeding, rapid acceleration, and hard braking to improve fuel economy by up to 30% |
| Regular maintenance | Regular servicing, oil changes, and replacement of parts improve engine performance and fuel efficiency |
| Choose fuel-efficient tyres | Select tyres with a higher economy rating to increase the distance traveled per litre or gallon of fuel |
| Drive in the highest gear | Driving in a higher gear reduces engine speed and fuel consumption at a steady speed |
| Plan routes | Plan optimal routes to reduce miles driven, stops, time spent in traffic, and the number of vehicles needed |
| Limit air conditioning | Limit the use of air conditioning as it uses fuel, but balance with the increased resistance of driving with windows down |
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What You'll Learn
Remove unnecessary items from your car
One of the easiest ways to make your car faster and more fuel-efficient is to remove unnecessary items from your car. The lighter the vehicle, the easier it is for the engine, and the less fuel it requires. This means that you should consider what you are carrying and remove anything unnecessary.
First, remove wind-resistant items on the outside of your car, such as cargo boxes and bike racks. These items create wind drag, which increases fuel consumption. An extra 100 pounds in the trunk reduces a typical car's fuel economy by 1 to 2 percent, so it is important to remove any items that are not necessary for your journey.
Next, clear out any extra bags, books, shoes, garbage, and other non-essentials from the boot, trunk, or passenger seats. Every extra 50kg of items in your car increases fuel consumption by 2%. This extra weight makes your vehicle heavier and less fuel-efficient.
It is also important to remember to remove any items that are not necessary for your journey from the passenger seats. The more weight in your car, the harder your engine has to work, and the more fuel it will consume.
While it is important to remove unnecessary items, it is not recommended that you remove safety items such as your spare wheel. This could be dangerous if you suffer a puncture, and may be against the law in some countries.
By removing unnecessary items from your car, you can reduce weight and wind resistance, making your car faster and more fuel-efficient.
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Check your tyre pressure regularly
Checking your tyre pressure regularly is essential for improving fuel efficiency and safety. Under-inflated tyres can increase rolling resistance, causing your car to use more fuel. Even slightly under-inflated tyres can reduce your miles per gallon (MPG) and wear out your tyre tread more quickly. Therefore, it is recommended to check your tyre pressure at least once a month and before long trips.
To check your tyre pressure, you need to know the ideal pressure for your car. This information can usually be found on a sticker in the driver's side door frame, inside the fuel door, in the glove box, or in your car's manual. The number will be in kPa (kilopascals) or PSI (pounds per square inch). It is important to note that the pressure can be affected by temperature, so it is best to check when the tyres are cold, meaning they have not been driven on for at least a few hours, as the pressure can increase while the tyres are in use.
Once you know the recommended pressure, you can use a tyre pressure gauge or an automatic air compressor to measure the pressure in your tyres. Remove the valve cap from your tyre and press the gauge firmly onto the valve stem to get a reading. Compare this reading with the recommended pressure. If the pressure is low, add air using a compressor, and if it is high, release air. It is important to check all four tyres, including the spare.
By maintaining proper tyre pressure, you can improve fuel efficiency, extend tyre life, improve handling and safety, and save money. Additionally, it helps prevent car punctures and reduces the risk of accidents and blowouts.
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Use cruise control
Cruise control is a feature found in most modern vehicles that can help make your car faster and more fuel-efficient. It is an advanced vehicle feature designed to maintain a constant speed without the need for continuous pedal use. The system automatically controls the throttle to keep the vehicle at the driver's desired speed, offering a more relaxed driving experience, especially on long journeys. This can be particularly useful on open roads and highways, where driving at a consistent pace is important for fuel efficiency.
The use of cruise control can contribute to better fuel efficiency by eliminating fluctuations in speed caused by human input. By maintaining a steady speed, cruise control minimises unnecessary acceleration and braking, which tend to waste fuel. This is especially beneficial for drivers who tend to change speeds frequently, as this can negatively impact fuel economy. Recent studies have shown that varying speeds between 47 and 53 mph every 18 seconds can increase fuel consumption by up to 20%. Additionally, aggressive driving behaviours such as speeding, rapid acceleration, and braking can decrease fuel efficiency by 15-30% at highway speeds.
While cruise control can be beneficial in many situations, it may not be the best choice for all driving conditions. For example, using cruise control in heavy traffic or on winding roads with multiple inclines and declines may not be as fuel-efficient. In these situations, manual control over acceleration and braking can allow for more informed decisions based on road conditions, potentially maximising fuel economy. Additionally, cruise control may not be well-suited for hilly or mountainous areas, as it maintains a constant speed regardless of the terrain.
However, some vehicles are equipped with adaptive cruise control (ACC), which uses radar and sensors to automatically adjust the vehicle's speed in response to traffic conditions. This advanced form of cruise control can enhance safety and convenience, especially during long-distance travel and everyday commuting. ACC can also be beneficial when tackling uphill climbs, as it can adjust throttle inputs and gear ratios more efficiently, optimising fuel consumption and power output during ascents.
Overall, cruise control can be a valuable tool for improving fuel efficiency and enhancing the driving experience, especially when used in appropriate driving conditions. It allows drivers to focus on the road and maintain a constant speed, contributing to a safer and more comfortable journey.
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Avoid aggressive driving behaviour
Aggressive driving behaviour, such as speeding, rapid acceleration, and hard braking, can significantly reduce fuel efficiency and increase fuel consumption. Not only is this style of driving dangerous, but it can also be costly. Analysis by the Massachusetts Institute of Technology shows that aggressive driving behaviour can lower fuel economy by 15-30% at highway speeds and a staggering 10-40% in stop-and-go traffic.
To improve fuel efficiency, it is important to adopt a smooth driving style. This includes maintaining a steady speed, avoiding hard braking, and anticipating road conditions. By spotting obstacles ahead of time, you can gradually slow down and accelerate slowly once the danger has passed. This not only improves fuel economy but also makes for a safer driving experience.
Another way to avoid aggressive driving behaviour is to plan your route effectively. Planning your route can help you avoid high-traffic areas, reducing the need for rapid acceleration and hard braking. It is also beneficial to be mindful of speed limits. While this is important for safety, it also helps to maintain good fuel economy. Most automobiles lose fuel efficiency after reaching 45-50 miles per hour, and the faster you drive, the lower your fuel economy will be.
Finally, it is essential to regularly check and maintain your vehicle. Properly inflated tires, for example, can improve your gas mileage by up to 3%, while choosing the right motor oil can improve fuel economy by 1-2%. Regular maintenance can help identify issues that may impact fuel efficiency, such as dirty or damaged fuel injectors, and ensure that your vehicle is running as efficiently as possible.
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Choose the right fuel and oil
Choosing the right fuel and oil is essential for a car's performance and fuel efficiency. Here are some tips to help you make the right choices:
Firstly, it is important to use the manufacturer's recommended grade of motor oil. Using the correct oil can improve fuel economy by 1-2%. High-performance engine oils are designed to reduce friction in the engine, combat sludge, and improve fuel economy. Regular oil changes are also crucial for maintaining engine health and efficiency.
Secondly, selecting the right fuel is crucial. The octane rating of the fuel should match your car's requirements. Octane ratings measure gasoline's ability to resist engine knock, and using the correct rating can improve engine performance and fuel efficiency. Check your owner's manual to determine the recommended octane rating for your vehicle.
Additionally, modern tyres have an economy rating that indicates their impact on fuel efficiency. Choosing tyres with a higher economy rating can increase the distance travelled per litre or gallon of fuel. It is also essential to maintain proper tyre pressure, as under-inflated tyres can reduce fuel efficiency by up to 10%. Check your tyre pressure regularly and ensure it matches the recommended PSI in the owner's manual.
Furthermore, regular car servicing and maintenance are vital to keep your vehicle running efficiently. A well-maintained engine works more smoothly and efficiently, reducing fuel consumption. This includes keeping up with recommended maintenance schedules, changing oils and filters regularly, and addressing any warning signs of component failure.
By choosing the right fuel and oil and following these maintenance tips, you can significantly improve your car's performance and fuel efficiency.
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Frequently asked questions
There are several ways to improve your car's fuel efficiency:
- Remove unnecessary items from your car, including wind-resistant items on the outside, like cargo boxes and bike racks.
- Check your tyre pressure regularly and maintain the recommended pressure.
- Limit the use of HVAC (heating, ventilation, and air conditioning systems).
- Use cruise control to minimize fast acceleration and hard braking.
- Drive smoothly by applying light throttle and avoiding heavy braking.
- Choose the right octane gas for your car.
- Regularly service your car and change the oil.
Here are a few ways to increase your car's speed:
- Remove unnecessary items from your car to reduce weight.
- Use higher gears when driving to improve acceleration and speed.
- Avoid following too closely behind the vehicle in front of you to prevent having to slam on the brakes.
Improving your car's fuel efficiency can also help increase its speed, as the engine won't be working as hard. Here are some additional tips to improve both speed and fuel efficiency:
- Check your tyre pressure regularly and ensure they are properly inflated. This reduces rolling resistance and improves fuel economy.
- Drive at optimal speeds, as higher speeds can reduce fuel economy, especially for larger or heavier vehicles.
- Plan your route in advance to reduce time spent in traffic or idling.
