How to Improve Car Mileage: Simple Tips To Get Better Fuel Efficiency

The easiest way to improve mileage is to adopt smoother and more predictable driving habits. Aggressive acceleration, hard braking and frequent changes in speed can increase fuel consumption. Try to accelerate progressively and maintain a steady speed wherever traffic conditions allow. On highways, using cruise control where appropriate can also help maintain a consistent pace.

Avoid keeping the engine running when the car is stationary for extended periods. Idling consumes fuel even though the car is not moving.

Regular maintenance is equally important. Dirty air filters, worn spark plugs, incorrect engine oil or other mechanical issues can affect engine efficiency. Following the manufacturer's recommended service schedule can help keep the car running properly. It is also worth removing unnecessary items from the boot. Carrying heavy luggage every day adds to the vehicle's overall weight and can slightly increase fuel consumption.

Yes, tyre pressure can have a noticeable effect on fuel efficiency. Under-inflated tyres create greater rolling resistance, which means the engine has to work harder to move the car. Check the tyre pressure regularly, preferably when the tyres are cold, and maintain the pressure recommended by the manufacturer. The recommended figures are usually mentioned on a sticker around the driver's door frame or in the owner's manual.

However, over-inflating tyres beyond the recommended level is not a solution either. It can affect ride comfort, handling and tyre wear.

Yes, using the air conditioner can increase fuel consumption, particularly in cars with conventional petrol or diesel engines. The AC compressor requires energy, which ultimately places an additional load on the engine. The impact can be more noticeable during slow-moving city traffic, where the engine is already operating under frequent acceleration and idling conditions. However, this does not mean you should avoid using the AC altogether. In hot weather, driving with the windows open can also increase aerodynamic drag, especially at higher speeds.

For better efficiency, set the AC to a comfortable temperature instead of using the lowest temperature setting continuously. Using the recirculation mode after the cabin has cooled can also help reduce the cooling load.

The mileage figure advertised by a car manufacturer is achieved under standardised testing conditions. Real-world driving is much more unpredictable. Traffic congestion, frequent acceleration, high speeds, road gradients, weather conditions, tyre pressure, vehicle load and AC usage can all affect fuel consumption. For example, a car driven mainly in heavy city traffic may return considerably lower mileage than the same car driven on an open highway at a steady speed. Therefore, the claimed mileage should be treated as a reference rather than a guarantee of what every owner will achieve.

Yes. Regular servicing can help maintain the engine and other mechanical components in good working condition.

Engine oil, air filters, spark plugs in petrol cars and other consumable components need to be checked or replaced according to the manufacturer's recommendations. A neglected maintenance schedule can eventually affect both performance and fuel efficiency. If you notice a sudden drop in mileage, it is worth getting the car checked rather than simply changing your driving style.

Yes. A heavier vehicle requires more energy to accelerate, particularly in stop-and-go traffic. Keeping heavy or unnecessary items in the boot for long periods can therefore affect fuel consumption. The effect may not be dramatic from carrying a few small items, but regularly carrying a substantial load can make a difference over time.

Highway driving can often deliver better mileage than city driving because the vehicle spends more time at a steady speed and experiences fewer stops and starts. However, driving at very high speeds can reduce efficiency because aerodynamic resistance increases significantly with speed. Maintaining a reasonable, steady speed is generally more efficient than frequent acceleration or driving aggressively.

The simplest method is the full-tank method. Fill the fuel tank, reset the trip meter and drive normally. At the next refill, note the distance travelled and the amount of fuel added.

Mileage = Distance travelled ÷ Fuel consumed

For example, if you travel 450 km and use 30 litres of fuel: 450 ÷ 30 = 15 km/l

For a more accurate result, repeat the calculation over several refuelling cycles rather than relying on just one tank.

Smooth acceleration, maintaining correct tyre pressure, regular servicing, avoiding unnecessary idling and maintaining a steady speed can all help improve fuel efficiency.

It can. Fuel consumption generally increases at higher speeds because the engine works harder and aerodynamic drag rises.

Yes. Under-inflated tyres increase rolling resistance and can make the engine work harder.

Yes, AC use can increase fuel consumption in conventional petrol and diesel cars. The effect varies depending on the vehicle, outside temperature and driving conditions.

No. Claimed mileage is measured under standardised testing conditions, while real-world mileage depends on traffic, driving style, road conditions, AC usage, vehicle load and maintenance.

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It is advisable to check tyre pressure regularly and before long journeys, while following the pressure recommended by the car manufacturer.

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Proper maintenance can help the engine and other components operate efficiently. If mileage has suddenly dropped, a service or mechanical inspection may help identify the cause.