How to save on fuel without changing how you drive

Jet Sanchez
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Cut fuel costs effortlessly with these maintenance and efficiency tips.

Cut fuel costs effortlessly with these maintenance and efficiency tips.

Rising fuel costs can strain any driver’s budget, but you don’t need to overhaul your driving habits to cut down on costs. 

By implementing simple yet effective driving strategies like the ones we've outlined below, you can maximise fuel efficiency without altering your driving style.

1. Maintain tyre pressure

Tyre pressure gauge

Underinflated tyres create additional rolling resistance, making your engine work harder and burn more fuel. 

On the other hand, properly inflated tyres can improve fuel efficiency by up to 3%

Check your tyre pressure monthly, especially during seasonal changes when temperatures fluctuate. 

Avoid overinflation, which can reduce traction and lead to uneven tyre wear. You’ll find the manufacturer’s recommended pressure in your owner’s manual or on a sticker inside the driver’s door.

2. Reduce vehicle weight

Extra weight in your vehicle increases fuel consumption, particularly during stop-and-start driving. Removing 45 kg of unnecessary weight can save around 1–2% on fuel. 

Empty your boot of items like tools or sports equipment you don’t regularly need. Every kilogram counts, so think twice before treating your car as a storage unit.

3. Limit air conditioning use

Air conditioning can increase fuel consumption by as much as 20% in stop-and-go traffic. 

At lower speeds, opt for natural ventilation by cracking the windows. On the motorway, keep the windows closed to reduce drag and rely on air conditioning sparingly. Use the recirculation mode to maintain cabin temperature more efficiently.

4. Ensure routine maintenance

Car maintenance

A well-maintained vehicle runs more efficiently. 

Replacing dirty air filters improves your engine’s air-to-fuel ratio, potentially increasing efficiency by up to 10%. 

Using the correct grade of engine oil reduces internal friction, while timely spark plug replacement ensures optimal combustion. Regular servicing also keeps your vehicle performing at its peak.

5. Minimise idling

Idling burns fuel unnecessarily. If you’re stationary for more than a minute - such as at train crossings or long queues - turn off your engine. 

Contrary to popular myths, modern engines don’t need extended warm-ups, even on cold mornings. Starting your car and driving gently is more fuel-efficient.

6. Streamline aerodynamics

Roof racks, bike carriers and roof boxes increase drag and fuel consumption, particularly at higher speeds. Removing these when not in use can improve efficiency by 2–8%. 

Even small changes, like closing windows and sunroofs on motorways, help reduce aerodynamic resistance.

7. Use high-quality fuels

While premium fuels cost more upfront, they often contain detergents that keep your engine cleaner, reducing build-up and improving long-term efficiency. 

Check your vehicle’s specifications to determine whether higher-octane fuel or a standard grade is optimal for your engine.

8. Monitor fuel economy

Track your fuel consumption using a trip computer or a fuel-tracking app. By monitoring litres per 100km, you can quickly spot inefficiencies or potential maintenance issues. 

Regular tracking also reinforces good habits and helps identify areas for improvement.

Key takeaways

Small, consistent adjustments to your vehicle’s setup and upkeep can lead to noticeable savings at the pump. 

Maintaining proper tyre pressure, reducing weight and streamlining aerodynamics are straightforward fixes. 

Combined with routine maintenance and thoughtful fuel choices, these strategies allow you to save money without sacrificing your driving style. 

Better yet, they contribute to reducing your carbon footprint, making them a win-win for your wallet and the planet.