Martin Lewis Unveils 45kg Rule for Major Fuel Savings
Financial guru Martin Lewis has revealed straightforward methods to slash petrol or diesel usage by as much as 30% through enhanced car efficiency. The founder of Money Saving Expert (MSE) discussed these strategies on a recent installment of his ITV programme, The Martin Lewis Money Show.
Small Changes, Big Impact on Fuel Consumption
Lewis emphasised that his advice, which features a pivotal 45kg guideline, might appear minor but delivers a bigger impact than many anticipate. This guidance arrives as escalating tensions in the Middle East have sparked a sharp rise in fuel prices, driven by substantial disruptions to global oil production and shipping networks.
Efficient driving conserves fuel by minimising the engine's energy expenditure to overcome resistance. By maintaining smooth driving habits, motorists can reduce wasted energy that typically converts into heat or excess exhaust emissions.
Key Tips for Reducing Fuel Use
On his show, Lewis explained: "Now, these seem small but have a bigger impact than you think. You should try and look to make your car as efficient as possible." He highlighted several actionable steps:
- Remove Empty Roof Racks: If a roof rack is unused, take it off. It creates significant wind resistance on motorways, drastically lowering efficiency.
- 45kg Rule for the Boot: Clear out unnecessary items from the trunk. For every approximately 45kg of extra weight, a car becomes about 1% less fuel-efficient. Lewis advised: "Junk in your trunk. You want to get rid of junk in your trunk." A lighter vehicle requires less engine effort for acceleration, deceleration, and maintaining speed, boosting fuel economy.
- Check Tyre Pressure: Ensure tyres are properly inflated. Underinflated tyres can increase fuel bills by 3-4% due to reduced efficiency. Lewis urged: "So get your tyres checked and pumped up properly."
- Manage Air Conditioning: At low speeds, air conditioning can be proportionally costly and reduce fuel efficiency. At high speeds, however, keeping it on is better than opening windows, which adds drag and forces the car to work harder.
Driving Habits That Save Money
Lewis also stressed the importance of driving style, noting: "Your accelerator is a money pump. When you are pressing it, you are spending the fuel that you have put into the car. Your brake isn't much better. It's a money burner, because when you're braking, you are converting the energy stored into the car into heat and throwing it away."
He clarified that he isn't discouraging acceleration or braking but recommended practices like maintaining safe distances, thinking ahead, and adjusting speed gradually to enhance fuel efficiency significantly.
Potential Savings and Final Thoughts
Research indicates that optimising car efficiency and adopting better driving techniques can reduce petrol and diesel costs by 10% to 30%, depending on initial conditions. Lewis concluded: "So it really is worth having a look at, especially at the moment when prices are high. Not rocket science, but worth knowing." With fuel prices soaring, these tips offer a practical way for drivers to cut expenses without complex changes.
