Diesel is more energy rich than petrol per litre and the differences in how diesel engines work make them more efficient than their petrol counterparts. A diesel engine of the same size as a petrol engine will invariably be more economical. One is that diesel cars are more expensive, so often you need to be a high-mileage driver in order to see the benefit of the economy versus the higher price. Another related reason is that diesel cars need regular runs on the motorway to stay in good condition, so if you only want a car for town-driving, a diesel may not be suitable.
A third reason is that diesels produce more local pollutants like nitrous oxide, which have more of an impact on air quality. Misfuelling: what to do if you put petrol in your diesel car. Petrol and diesel engines have different characteristics. Diesel is a good fuel for long-distance, low-rev driving, such as motorway cruising. It also produces lots of power at low engine speeds, making it ideal for towing caravans.
Petrol, on the other hand, is often better for smaller cars and is generally more popular in hatchbacks and superminis. In terms of fuel economy, the choice between a diesel and a petrol engine can be tricky — see our 'petrol or diesel' guide here.
While small, turbocharged engines can produce more power than many bigger engines made in the past, it still holds as a general rule that a large engine is capable of producing more power. Buyers that would benefit from a large engine include caravan owners and people intending to travel long distances on motorways, particularly if the car will be full.
Cars with large engines can also be fun for those who enjoy driving, as they tend to deliver extra power and noise — an important ingredient for fans of fast cars.
Additionally, cars that are large and heavy in their own right tend to require larger engines. Posh 4x4s like the Range Rover which weighs a couple of tons require more energy to get moving and maintain speed. It's hard to give an absolute rule on what engine size will be sufficient for your specific needs because there are engines of similar sizes that perform significantly differently. However, most engines produced today that are bigger than 1.
Towing with an electric car, hybrid or plug-in hybrid - what's the capacity and can you tow a caravan? Electric car charging stations: a complete guide. Skip to header Skip to main content Skip to footer. Tips and advice Home Tips and advice.
What does engine size mean? Engine management light: top 5 causes of amber engine warning light Engine sizes are normally expressed in litres. What does two-litre, 2. How does engine size affect performance? How does engine size affect fuel economy? Top 10 best company cars Small engines tend to particularly suit cars that are used predominantly around town. Misfuelling: what to do if you put petrol in your diesel car Petrol and diesel engines have different characteristics.
Why would I want a large engine? Performance cookies are used to understand and analyze the key performance indexes of the website which helps us to deliver a better browsing and user experience for the visitors. We use cookies to give you the best possible experience on our site and allow us and third parties to customise the marketing content you see across websites and social media.
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Small engine cars 1L - 1. However, you must have an insurance policy that covers your vehicle and allows you to drive without supervision.
As a rule of thumb, cars with smaller engines will be cheaper to insure than cars with larger engines. Branch locator. Car valuation. Free car check Car tax check MOT check. Scrap my car. Value your car in under 60 seconds. What does car engine size mean? Small engine cars Smaller engines, often ranging between 1-litre and 1. Large engine cars A larger engine, for example, a 2. Car engine sizes, economy and insurance As you can likely imagine, larger engines with an increased capacity for fuel and air require more fuel than smaller engines.
Which car engine size is best for me? Frequently asked questions Q: How can I check my car engine size? Q: What is the best engine size for a car?
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