Learning how to improve fuel economy has never been more crucial for drivers. Whether you’re looking to save money, reduce your carbon footprint, or simply get more miles from each tank, we’ve collated some tips that can help you achieve significant fuel savings.
Proper driving techniques alone can improve fuel economy by up to 25%, while simple maintenance tasks like maintaining correct tyre pressure can boost efficiency by an additional 4%.
Master Your Driving Technique
Your driving style represents the single most influential factor in determining fuel consumption. Small adjustments to how you accelerate, maintain speed, and anticipate traffic conditions can yield immediate and substantial improvements in fuel efficiency.
Gentle Acceleration and Deceleration
The way you accelerate from a complete stop significantly impacts fuel consumption. Aggressive acceleration forces the engine to work harder, burning more fuel to achieve the same speed. Instead, practice gentle acceleration, this approach allows the engine to operate more efficiently and reduces unnecessary fuel consumption.
Similarly, when you need to slow down, coast to decelerate by lifting off the accelerator early rather than relying heavily on the brake pedal.
Maintain Optimal Engine RPM
Understanding your engine’s most efficient operating range is crucial for fuel economy. For petrol engines, keep RPMs between 1500-2500, while diesel engines operate most efficiently between 1300-2000 RPM. These ranges represent the sweet spot where your engine produces adequate power while consuming the least amount of fuel.
Use Cruise Control Strategically
Cruise control can be an excellent tool for maintaining a constant speed on the motorway, helping you avoid the unconscious speed fluctuations that increase fuel consumption by up to 20%. However, use it strategically as on hilly terrain, manual control often proves more efficient.
Anticipate Traffic Conditions
Looking ahead and anticipating traffic flow allows you to avoid unnecessary acceleration and sudden braking. Maintain a safe following distance so you can coast when traffic slows, rather than braking hard and then accelerating again.
Keep Your Car in Optimised Condition
Better Fuel Economy with Correct Tyre Pressure
Tyre pressure represents one of the most overlooked yet impactful factors in fuel economy. Under-inflated tyres can increase fuel consumption by up to 4%, while also reducing tyre life and compromising safety. Check tyre pressure regularly, at least monthly, using the manufacturer’s recommended PSI levels found in your owner’s manual.
Proper wheel alignment also contributes to fuel efficiency by reducing rolling resistance and preventing uneven tyre wear. If your vehicle pulls to one side or you notice irregular wear patterns, have your alignment checked by a qualified technician.
Weight and Load Management
Shifting around unneeded weight in your vehicle requires additional energy to accelerate and maintain speed. Remove unnecessary weight from your car, as every 25kg of extra weight can increase fuel consumption by approximately 1%. This includes items in your boot, back seat, and glove compartment that you don’t need for your current trip.
Aerodynamic Optimisation
Wind resistance becomes increasingly significant at higher speeds, making aerodynamic efficiency crucial for fuel economy. Remove roof racks, bike racks, roof bars, and roof box accessories when not in use, as these items can reduce fuel economy by 15-20%, particularly at motorway speeds. Even empty roof racks create substantial air resistance and reduce drag efficiency.
Strategic Use of Vehicle Systems
Modern cars come equipped with various systems that, when used strategically, can either help or hinder fuel economy. Understanding when and how to use these systems optimises your vehicle’s efficiency.
Air Conditioning Management
Air conditioning represents one of the major factors affecting fuel consumption, potentially increasing fuel usage by 10-20% depending on conditions and usage patterns.
During city driving at lower speeds, using air conditioning typically consumes more fuel than opening windows. The engine must work harder to power the AC, directly increasing fuel consumption. However, at motorway speeds above 50 mph, the aerodynamic penalty from open windows often exceeds the fuel cost of air conditioning, making aircon the more efficient choice.
Engine Management Systems
Many modern cars feature stop-start technology that automatically shuts off the engine when stopped in traffic or at lights. This system can improve fuel economy by 5-10% in city driving by eliminating fuel consumption during idling. If your vehicle lacks this technology, manually turn off the engine when stopped for more than 60 seconds, such as at railway crossings or long traffic lights, anything shorter is not worth the wear and tear on your engine starter.
Regular Maintenance and Service
Consistent vehicle maintenance ensures all systems operate at peak efficiency, directly impacting fuel consumption. Neglected maintenance creates inefficiencies that compound over time, reducing fuel economy and increasing long-term costs.
Essential Maintenance Schedule
Follow manufacturer-recommended service intervals, typically every 6,000 miles or six months, whichever comes first. Regular servicing identifies and corrects issues before they significantly impact fuel efficiency. A well-maintained engine operates more efficiently than one with worn or dirty components.
Keep your car serviced by qualified technicians who understand fuel efficiency optimization. Proper maintenance not only improves fuel economy but also extends engine life and maintains vehicle reliability.
Engine Oil and Fluids
Maintain fresh engine oil at proper levels for optimal lubrication and engine efficiency. Old or low oil increases internal friction, forcing the engine to work harder and consume more fuel. Use the oil viscosity recommended by your vehicle’s manufacturer, as thicker oils can increase fuel consumption while thinner oils may not provide adequate protection.
Speak to our team if you need any additional servicing or to have your vehicle checked to improve fuel efficiency.
Fuel Economy FAQs
What’s the most fuel-efficient speed for motorway driving? Most vehicles achieve optimal fuel efficiency between 45-60 mph, with consumption increasing significantly above 70 mph due to exponentially increasing aerodynamic drag.
Does using air conditioning always use more fuel than open windows? At city speeds, open windows typically use less fuel than air conditioning. However, above 50 mph, air conditioning becomes more efficient due to the aerodynamic drag created by open windows at higher speeds.
Should I use premium fuel for better fuel economy? Unless your vehicle specifically requires premium fuel, regular petrol or diesel provides the same fuel economy at lower cost. Premium fuel doesn’t improve efficiency in engines designed for regular fuel.
