Fuel Efficiency & Engine Maintenance Guide for Car Owners

What is Fuel Efficiency?

Fuel efficiency refers to how effectively a vehicle uses fuel to travel a certain distance. In other words, it measures the distance a vehicle can cover within a specific amount of fuel. A vehicle with good fuel efficiency can travel a long distance using a small amount of petrol or diesel.

India uses kilometres per litre as the standard unit for measuring the fuel efficiency of vehicles. For example, a car that gives 20 km/l of mileage can travel 20 kilometres using one litre of fuel. The higher the fuel efficiency, the less fuel it burns to travel a given distance and vice versa.

Top 10 Ways to Get Maximum Fuel Efficiency

Here are the top 10 ways that can help you maximise the efficiency of fuel in your vehicle:

1. Drive Smooth

One of the top driving tips to maximise the fuel efficiency of your vehicle is to drive slowly in a calm and smooth manner. Sudden acceleration and hard braking at high speed make the engine work harder, which eventually results in increased fuel consumption. So, it is better to drive smoothly and use the brakes gently when needed. When the vehicle moves steadily and calmly, the engine does not have to work as hard, which helps save fuel over time and supports mileage improvement.

2. Try to Maintain a Steady Speed

Frequent speeding and slowing down can increase fuel consumption. When you keep changing the speed while driving, the engine has to repeatedly work harder to regain momentum. Maintaining a steady speed while driving keeps the engine stable and reduces fuel consumption, especially on highways or open roads.

3. Switch Off the Engine During Long Stops

Many people keep their car engine ON while the vehicle is not moving, which leads to the wastage of fuel. Therefore, if you are in a traffic jam for a long time or waiting for someone with your car’s engine running, it is better to switch off the engine as it will help you save fuel.

4. Use the Correct Gear While Driving

Gear selection plays a crucial role in a vehicle's fuel efficiency. Driving in the wrong gear forces the engine to use more fuel than necessary. For example, if you are driving at a low speed in a high gear, it can make the engine struggle, while driving fast in a low gear can cause the engine to rev too much. Therefore, it is recommended that you change gears at the proper speed to help the engine run smoothly and improve fuel efficiency.

5. Do Not Keep the Foot on the Clutch

If you habitually keep your foot on the clutch pedal while driving, it can lead to higher fuel consumption. Even a slight pressure on the clutch can cause partial clutch engagement, which makes the engine work harder. Over time, it wastes fuel and also damages the clutch plate. The better habit is to use the clutch only when changing gears and keep your foot away from the pedal the rest of the time.

6. Remove Unnecessary Weight from the Vehicle

Extra weight inside the vehicle makes the engine work harder. The heavier the vehicle becomes, the more fuel it needs to move. Cleaning out the boot space and removing unnecessary items can contribute to mileage improvement.

7. Avoid Driving with Windows Fully Open at High Speed

Many people believe that using the AC while driving consumes more fuel, so they turn it off and open the windows. But this is not true. If you drive your vehicle with the windows open at a high speed, it causes a lot of air to be pushed towards the vehicle. Because of this, the engine has to work harder to move the vehicle. Therefore, it would be better for you to close the windows or open them slightly while you are driving your vehicle at a high speed.

8. Avoid Using Oversized Tyres

Installing wider or larger tyres in your vehicle might look stylish, but can affect fuel efficiency. They create more rolling resistance and are heavier to rotate. As a result, the engine needs more fuel to move the vehicle. So, using the tyre size recommended by the manufacturer is always a better choice.

9. Buy Fuel from a Reliable Petrol Pump

The quality of fuel is another factor that affects the fuel efficiency of your vehicle. If the quality of the fuel is low or if the fuel is adulterated, it may result in a decrease in the kilometres run by a full fuel tank. It may even cause damage to the vehicle’s engine. It is therefore advisable to buy fuel from a reliable petrol pump.

10. Keep the Tyres Properly Inflated

Low-pressure tyres cause more resistance on the road. This results in the engine consuming more fuel to move the vehicle. It is hence necessary to check the tyre pressure regularly to increase the fuel efficiency of your vehicle.

How to Maintain the Engine of a Car?

After learning some mileage improvement tips, it is equally important for you to know how to maintain your car's engine. Listed below are the helpful tips to extend the life of your car engine:

1. Replace Air and Fuel Filters When Needed

Your car has air and fuel filters that help prevent dust and dirt from entering the engine. However, these filters may clog over time, and your engine would not get clean air and fuel, which would affect the performance of the engine. Hence, you should get these filters checked while you are taking your car for maintenance.

2. Keep the Coolant at the Right Level

The car's engine generates a lot of heat while the vehicle is in motion. The coolant system is used to keep the engine temperature at an acceptable level by regulating the engine's heat. Your engine would overheat and might get damaged if the level of the coolant is below the acceptable level. So, you should check the coolant level regularly and refill it if needed.

3. Check for Oil or Fluid Leaks

You should sometimes look under your car or in the engine area to check for leaks. Oil or coolant can leak from pipes, hoses, or seals. If fluids keep leaking, the engine may not get enough lubrication or cooling. So, you must fix small leaks early to prevent bigger problems later.

4. Check and Replace Spark Plugs

Spark plugs help start your engine by creating a spark that burns the fuel. If the spark plugs become dirty or worn, your engine may run roughly or use more fuel. You should have your spark plugs checked and replaced if necessary to keep the engine running smoothly.

5. Warm Up the Engine for a Short Time

Do not drive aggressively immediately after starting your car. Allow it some time to warm up, especially when it is cold. This will help ensure proper engine oil circulation and protect the engine's internal parts from sudden stress.

6. Do Not Ignore the Check Engine Light

You must pay attention to the check engine light that appears on your dashboard. The light indicates that the engine or its components are malfunctioning. Getting it checked early can prevent small issues from turning into major repairs.

7. Let the Engine Cool Before Switching Off

It is not a good habit to switch off your car as soon as you arrive at your destination. You need to let the engine run for a while, especially if your vehicle is turbocharged. This will help cool your engine and prevent damage.

8. Check Engine Belts and Hoses Regularly

Engine belts and hoses play an important role in running systems like air conditioning and power steering. However, they may become damaged or weakened over time. Therefore, it becomes important to regularly check engine belts and hoses and replace them whenever they get damaged to ensure the smooth running of the car's engine.

9. Avoid Driving on Very Low Fuel

You should always avoid driving your vehicle with a low fuel level. With time, dirt and impurities tend to settle at the bottom of the fuel tank. As the fuel level drops, these impurities are drawn into the engine, causing damage. In order to avoid this problem, it is always important to ensure that the fuel level is always adequate in the tank.

10. Follow the Recommended Service Schedule

All vehicles have a recommended service schedule that is provided by the manufacturer. This schedule is important because it ensures that all critical engine components are serviced and replaced at the appropriate times. This will eventually help extend the engine's life.