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LPG is best green optionSource: The GuardianFor anyone wishing to "green up" their current car, converting to LPG, or autogas, is probably the best option, both in terms of savings to the running costs and to the environment. Both petrol- and diesel-powered cars can be converted, although changing the former is cheaper and easier. A litre of LPG can cost less than 40p a litre, while petrol - thanks mainly to fuel duty - now costs up to 86p a litre. A typical, quality petrol engine conversion costs about £1,800, depending on the car, and your payback will be about 18 months, depending on your mileage. In addition to its financial attractions, LPG is also a cleaner fuel than petrol, and dramatically cleaner than diesel. Compared with petrol, LPG vehicles emit about 20% less CO2. While LPG emits similar levels of CO2 to diesel, one diesel car is equivalent to 20 LPG cars with regard to nitrogen oxides (NOx), and 120 LPG vehicles in terms of particulates, both of which are major causes of ground-level air pollution. One important environmental caveat with LPG is that it actually uses up to 20% more fuel by volume than petrol. It is simply a cleaner way of burning a fossil fuel, not a way of reducing the need to drill for oil. The comedian Marcus Brigstocke recently converted his VW Golf Estate for just less than £2,000: "LPG is great. It works. There's no loss of performance and my resident's parking now costs just £6 a year. I don't understand why more people don't do this. It's a no-brainer." For more information about converting to LPG, visit www.boostlpg.co.uk
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