If your car has a cruise control option it is a good idea to use this as it will save you a fortune in fuel. Having calmed your inner Stirling Moss or Lewis Hamilton, there are other measures you should consider taking to be less of a gas-guzzler. Using the air conditioning can add 10 per cent on to your fuel bill and is especially draining on the engine when you are stuck in a traffic jam. You should also check your tyres are fully inflated — to make for safer as well as more economic driving.
If you have a roof rack on the car this adds wind resistance that can also affect fuel efficiency by as much as 10 per cent. Even cleaning out the car and not filling up the tank completely with petrol can have an impact as the extra weight burns more fuel. For the most economical modern cars you will have to squeeze yourself into a small vehicle. But if you plan on taking the entire family on a long trip you might need to drive a bigger vehicle.
Supermarkets tend to offer the best rates for petrol as they hope to lure you into the shop.
Petrol vs Diesel
Yet more than three decades later, it really could finally be happening thanks to technology and the rising cost of driving a traditional car. The Government has also said it is banning the sale of new petrol and diesel cars in Britain from The downside is that electric vehicles are still more expensive than a petrol-driven car and need recharging every miles or so — using an electric point that is rarely found in a public car park — and need an adapted power point at your home.
A compromise is the hybrid that allows you to put your foot down with traditional fuel when on a motorway but switch to electric when stuck in town. Some links in this article may be affiliate links.
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My wife was given her parents' bungalow 19 years ago and now we want to sell it, can we move in to cut our capital gains tax bill? Is this a buy-to-let loophole? Try Which? You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy. Diesel cars have long been favoured by the frugal motorist, thanks to superior fuel economy.
Diesel owners also used to pay less car tax. But new diesel cars no longer benefit from low car tax. So is diesel still the fuel of choice? Here, we tell you whether diesels are really still economical, tell you what you need to know about diesel cars and pollution, and reveal which hybrids give diesels a run for their money when it comes to motorway fuel economy. Take a look at our expert pick of the best cars to find out which models should be on your shortlist. Still not sure if you should choose petrol, diesel or hybrid?
Keep reading to find out. Discover the cars we recommend by viewing our round-up of the best cars. Diesel cars have been known for having better fuel economy - and for good reason. In our tests, diesel trumps its petrol counterpart for fuel economy on both the motorway and around town. Diesel might cost more per litre at the pump, but currently a diesel car's fuel costs will be cheaper than the equivalent petrol car. Table notes 1 All results from Which? Figures will be updated with the onwards test programme once we have enough to provide averages.
Our unique Which? Hybrid cars, however, are quickly catching up. Unbeatable fuel economy around town has always been the hybrid's forte. But, compared with diesel, the hybrid car's weakness has always been its poor fuel economy on the motorway. But in our most recent tests, we have discovered two hybrid cars with a motorway fuel economy as good as most diesels.
Table notes 1 Results from the current onwards test programme. For more on how we measure fuel economy from cars, see how we test mpg and emissions.
Would a diesel family car save me money? - Insights, Reports and Pricing from car people
As hybrid technology evolves, we expect more cars to follow suit - with improved overall and motorway fuel economy. If this happens, there will be ever-diminishing reasons to buy a diesel car. You can use our independent fuel economy figures from our car reviews , in conjunction with our fuel calculator below, to work out how much a car will cost to fuel over a year. You can use our simple fuel-cost calculator, below, to easily work out the fuel costs between two cars.
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Enter the respective fuel-economy figures for the cars and your mileage to see the difference. For the most accurate results, don't use the manufacturers' claimed figures. How much car tax you pay depends on when the car you have was registered to its first owner. The car then stays on that tax system through subsequent re-sales. All tax rates based on official CO2 emissions.
Diesel and hybrid cars, in general, produce low amounts of CO2 compared with petrol. So diesel and hybrid cars were generally cheaper to tax, if not tax free. Only the first year's payment is based on CO2 emissions. For example, under the old system, if you owned a diesel Ford Focus you would pay nothing in car tax for the first year.
However, the changes in car tax rates have not been backdated. For current rates and more information on how car tax has changed, see our guide to car tax explained. And keep a comfortable distance between your vehicle and the one in front of you. Keep to the speed limit and save on fuel! Above this speed zone, vehicles use increasingly more fuel the faster they go. On a km trip, this spike in speed — and fuel consumption — would cut just two minutes from your travel time. Every time you use your brakes, you waste your forward momentum.
You will conserve fuel and save money by taking your foot off the accelerator and coasting to slow down instead of using your brakes. The average vehicle with a 3-litre engine wastes millilitres over 1 cup of fuel for every 10 minutes it idles. It can also reduce the life of your tires by more than 10, kilometres. Find the right tire pressure for your vehicle on the tire information placard. Learn more about tire maintenance.
Remove items such as salt, sand and sports equipment from your vehicle. The less it weighs, the less fuel your vehicle will use. If you do use air conditioning, use the re-circulate option.