The basic answer is change your driving style and you can improve your fuel economy. The person who runs the Ka Klub follows these techniques and can get 51mpg out of his Ford Ka.
Remove excess weight - easy way is to remove stuff from the boot, or cabin that you are not using. More invasively, you can remove the spare wheel and use a can of tyre weld instead.
2. Keep your car well maintained. Pump up your tyres to reduce resistance and get the car serviced regularly.3.
Plan the journey. Avoid traffic black spots and busy times if possible, avoid getting lost and driving farther than you need.4.
Accelerate and brake gently, and change to a higher gear as soon as possible - before 2500rpm in a petrol, without letting the engine struggle at low revs. Be gentle in your driving style. Avoid hard acceleration from a standstill.5.
Stick to the speed limits. What Car?
research shows that doing 80mph uses up to 25% more fuel than doing 70mph. The faster your go over the optimum speed of around 55mph to 60mph will reduce your fuel economy and save very little time across a journey.
Studies backed by the department of energy (USA), the average car will be at its advertised MPG at 55 mph. But as the speed increases:
- 3% less efficient at 60 mph
- 8% less efficient at 65 mph
- 17% less efficient at 70 mph
- 23% less efficient at 75 mph
- 28% less efficient at 80 mph
6. Use gravity and build up momentum when going downhill to help you then get uphill, rather than accelerating more to get up the incline. The best way to do this is to read the road as if you were on a pushbike and accelerate accordingly. Do not roll in neutral - keep the car in an appropriate gear.
7. Look far ahead while driving and keep moving where possible by anticipating obstacles. Easing off the throttle and keeping momentum is better than speeding up, braking and then starting all over again.
8. For those of you with air-con, keeping it off unless you are uncomfortably warm can improve your fuel economy.