Fuel efficiency isn’t just a buzzword; it’s a lifestyle change that can save you money and reduce your carbon footprint. While it’s true that engines need fuel to operate, you don’t have to break the bank to keep your car moving. By making some minor adjustments to your driving habits and car maintenance, you can significantly improve your vehicle’s fuel efficiency. So, let’s dig into these tips that can help you keep more money in your pocket while promoting sustainable driving.

1. Keep Tires Pumped Up

The Science of Rolling Resistance

Rolling resistance is that invisible force that works against your vehicle as it moves along the road. The higher the rolling resistance, the harder your engine has to work, ultimately gulping down more fuel. Tires that are underinflated generate a higher rolling resistance, which translates into increased fuel consumption. In simpler terms, if your tires are deflated, your engine has to work overtime, costing you more at the fuel pump.

The Cost of Negligence

Ignoring your tire pressure isn’t just an oversight; it’s an expensive mistake. If all your tires are underinflated by 10 psi, you could be reducing your fuel efficiency by up to 10%. This not only affects your wallet but also has a broader impact on the environment due to increased CO2 emissions. To keep your tires in optimal condition, make it a habit to check and adjust the tire pressure regularly.

2. Lose the Weight in Your Boot

cluttered car boot

The Weight-Fuel Relationship

Every extra kilogram counts when it comes to fuel consumption. For instance, an additional 50kg in your boot can increase your fuel consumption by 2%. Over time, that extra weight adds up to a significant amount of wasted fuel. And let’s face it, many of us are guilty of turning our boots into mobile storage units, cramming in everything from gym bags to old car batteries.

Spring Cleaning Your Boot

It’s time for a boot detox! Consider this as your periodic “spring cleaning,” removing unnecessary items and keeping only essential emergency gear. This will not only boost your vehicle’s fuel efficiency but also improve its overall performance.

3. Drive with AC Smartly

motorist turning off aircon in their car

Opt for Air Conditioning Over Open Windows

It’s a common misconception that air conditioning always uses more fuel than rolling down the windows. The reality is different. When driving at speeds above 80 km/h, open windows create significant aerodynamic drag, causing your vehicle to burn more fuel.

Know When to Use AC

The trick is knowing when to switch between the two. If you’re cruising through the city at low speeds, a fresh breeze from your windows won’t hurt your fuel economy much. But when you hit the highway, roll ’em up and turn on the AC for more fuel-efficient travel.

4. Don’t Go Too Fast or Too Slow

The Goldilocks Speed Zone

optimal speed range

Like Goldilocks, your car has a “just right” zone when it comes to speed and fuel consumption. Go too fast, and you’re battling wind resistance; go too slow, and your car drops to a lower gear, consuming more fuel. Driving between 50-90 km/h is generally the sweet spot for most vehicles to achieve optimal fuel economy.

Constant Is King

Maintaining a steady speed is not only safer, but it also saves you fuel. For those with cruise control, this feature can be a real lifesaver. Your car maintains a constant speed, ensuring you’re not wasting fuel through unnecessary acceleration and deceleration.

5. Steady Acceleration

steady acceleration

Revs and Fuel Consumption

Rapid accelerations and high RPMs (revolutions per minute) are surefire ways to consume more fuel. Your engine works harder and burns more fuel when it has to accommodate these rapid changes in speed.

The Art of Gentle Acceleration

Practice the art of gentle acceleration. A steady foot on the accelerator ensures that your engine operates at lower RPMs, which is great for your fuel economy.

By now, you should have a solid understanding of how small behavioral adjustments can lead to significant fuel savings. But this is just the tip of the iceberg. There are even more ways to economize your fuel usage, from predictive driving to avoiding long idling periods.

For those experiencing chronic issues with fuel consumption, it might be an indicator of deeper engine problems. Our network can help you find quality BMW engines for sale, Toyota engines, and Nissan engines that are known for their fuel efficiency.

6. Avoid Aggressive Braking

brake pedal

The Stop-Start Cycle

Braking aggressively doesn’t just eat into your fuel economy; it’s also a sign of hazardous driving. The constant acceleration needed after each hard brake adds unnecessary strain on your engine, thus increasing your fuel consumption.

Keep a Safe Distance

Always maintain a safe distance from the vehicle in front of you. This gives you ample time to adjust your speed without the need for aggressive braking. Plus, it’s much safer, reducing the risk of collisions.

7. Cruise in Top Gear

cruise control

The Beauty of Cruise Control

For those driving automatic vehicles, cruise control is your best friend for maintaining a consistent speed and reducing fuel consumption. It keeps your vehicle moving at a steady pace, preventing fuel-wasteful speed fluctuations.

Manual Gearing Up

For manual drivers, staying in higher gears when appropriate will reduce the number of RPMs, contributing to better fuel economy. But remember, this doesn’t mean you should skip gears; rather, shift up when it’s appropriate to do so.

8. Practice Predictive Driving

practice predictive driving 1

Read the Road

Observing the road and traffic conditions allows you to adjust your driving style accordingly. By slowing down as you approach a red light or starting to accelerate as you reach the base of a hill, you can achieve more fluid driving patterns, thus saving fuel.

Avoid Sudden Moves

Quick and hard accelerations or decelerations are major culprits when it comes to wasting fuel. Predictive driving helps you avoid these scenarios by preparing you for what’s to come, allowing your engine to operate at its most efficient.

If your fuel efficiency is consistently poor despite trying all these tips, you might need a more serious intervention. Consider checking out our range of Honda engines and VW engines known for their reliability and fuel efficiency.

9. Plan Your Rush Hour Route

practice predictive driving

Beat the Traffic

Rush hour traffic is notorious for its stop-and-go pattern, which is a fuel guzzler’s paradise. Preemptively planning your route to avoid such congestion can be a real game-changer for your fuel economy.

Use Traffic Apps

Make technology your ally. Apps like Google Maps can predict traffic conditions and suggest alternative routes. By using these tools, you minimize idle time and frequent acceleration, thus reducing fuel consumption.

10. Don’t Stay Idle for Long

car Idle

Time is Fuel

Idling is the silent killer of fuel efficiency. If you’re waiting for more than three minutes, it’s more economical to turn off your engine. An idling car consumes fuel for zero gain.

Smart Parking Choices

Choosing a parking spot where you can pull through, rather than having to reverse out, can also save a bit of fuel. The less maneuvering you have to do while your engine is cold, the better.

11. Regular Car Servicing

Car Servicing

Engine Upkeep

If you’re looking to optimize your car’s fuel efficiency, regular servicing is non-negotiable. A poorly maintained engine has to work harder, consuming more fuel in the process.

Oil’s Role in Fuel Economy

Don’t overlook the importance of quality engine oil. High-performance oils can significantly reduce engine friction, making operations smoother and more fuel-efficient.

Conclusion: It’s Time for a Check-Up

If all these tips still don’t improve your fuel economy, it might be a sign that your engine needs more than just a little TLC. Consider replacing your engine with a more fuel-efficient one. Check out Engine Finder’s range of used engines for sale.

There you have it! Eleven practical ways to cut down on your fuel consumption. Implement these changes, and you’ll see a noticeable difference in your fuel bills, all while doing your part for the environment.


How can I improve my fuel efficiency?

Keep your tires inflated, limit weight in the boot, and maintain steady acceleration.

Why is my fuel going down so fast?

Aggressive driving, extra weight, or low tire pressure can cause rapid fuel consumption.

How can you reduce your fuel consumption by up to 30%?

Drive in optimal conditions, use cruise control, and keep the vehicle well-maintained.

Which gear consumes more fuel?

Lower gears generally consume more fuel than higher gears.

Can spark plugs cause high fuel consumption?

Yes, faulty spark plugs can cause inefficient combustion, leading to higher fuel consumption.

Why is my car consuming so much fuel?

Reasons can range from mechanical issues to poor driving habits.

What is the best speed for fuel economy?

For most vehicles, the optimal speed is between 45-65 mph (72-104 km/h).

What is a good fuel economy per 100km?

A good fuel economy would be between 5-8 liters per 100km for most cars.

craig sandeman rotated

With over twenty years of experience in the automotive industry, Craig Sandeman established Engine Finder to address the need for high-quality used engines by leveraging a network of reputable scrap yards and engine importers throughout South Africa.


Potential issues, causes, and solutions have been identified in the above article based on the experiences of car owners and repairers, as well as web materials such as forum blogs and technical support bulletins. This data is supplied exclusively for the purpose of reference. Only appropriately qualified persons should perform repairs and/or changes on your vehicles.

While it’s important to keep in mind, it’s also important to note that the amount of times anything is mentioned here should not be seen as a sign of its reliability or frequency. Various owners, driving in different ways, and caring for their vehicles in distinct ways will cause two identical vehicles to perform differently.

As previously said, this material is supplied primarily for reference reasons; nonetheless, we hope that by doing so, we will be able to supply you with essential knowledge that will allow you to make informed decisions whenever you encounter any of the aforementioned setbacks.

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