How to save money on fuel with ex-Top Gear's Quentin Wilson

Driving down your fuel costs is as simple as checking your speed and watching this tutorial.
Check out this green driving guide and you could save £20* per week on your motoring costs. Driving more efficiently can improve your car’s fuel economy by up to a quarter.
• Move off smoothly to your target speed and maintain it for maximum fuel efficiency. Watch ex Top Gear presenter Quentin Wilson demonstrate some green driving techniques to make your fuel last longer:
• Change gear at around 2,000rpm in a diesel car or around 2,500rpm in a petrol car to put less strain on your engine and use less fuel.
• Avoid built-up areas with junctions and speed bumps.
• Stay in the left lane on motorways where possible – doing 56mph uses 25 per cent less fuel than 70mph.
• Avoid harsh braking and accelerating – changes in speed should be gradual.