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Esso Synergy™ fuels

Our Esso Synergy diesels

Discover the detail that goes into developing our fuel.

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What’s in our Synergy regular diesel

Our fuel engineers spend hours and hours testing different ingredients and formulas, because they know the smallest change can make a difference. Like the molecules in our regular Synergy diesel that have been specially designed to help clean vital parts of your engine (like your car’s fuel injectors) and help look after your engine. You may have heard that nasty engine deposits can build up in your engine over time which prevent your car from performing at its best and can reduce your fuel economy. In fact, when we tested it on everyday cars it helped improve fuel economy by an average of 1.8%.*

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What’s in our Synergy Supreme+ premium diesel

The extra molecules that we add to our Synergy Supreme+ Diesel give it a much higher cleaning power compared to our regular diesel and are designed to give you more power. Meaning it can help take better care of your engine and give you better performance.**

Learn about 5 key ingredients that are added to our Synergy diesels

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What is the difference between regular and premium diesel?

Our Synergy Supreme+ Diesel has double the amount of detergent additive than our regular diesel, which helps give your engine a deeper clean. And the cleaner your engine, the more power you’ll get and the more responsive it will be.

Our Synergy Supreme+ Diesel is also designed to remove more of the nasty deposits in your engine, which helps to look after your engine and give you increased fuel economy.**

How our diesel works

Here are some handy driving tips

Keep your boot and back seats clear of loads you don’t need. Carrying around tools or sport bags full of gear and equipment can make your car heavier. This, in turn, makes the engine work harder and uses more fuel.
It is good to get into the habit of changing up to a higher gear as soon as you can. Higher gears are more economical in terms of fuel consumption.***
Drive smoothly and at a reasonable speed whenever possible – driving at high speeds may use more fuel than driving at slower speeds. Remember, if you accelerate or brake suddenly it is likely that your engine will use up more fuel and produce more CO₂.
Anticipate the flow of traffic as far ahead of you as possible to help you avoid unnecessary stopping and starting. This will help you to drive more smoothly.
A shared journey means one less car on the road. This could help to reduce traffic congestion.
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Our Synergy petrols

Find out more about the Synergy technology in our petrols, and the differences between our regular and premium products.

Learn more
*Esso Synergy Diesel Claims based on (1) internal or third party vehicle engine testing; and/or (2) government publications; and/or (3) industry or scientific literature. Testing based on diesel vehicles purchased on the UK used car market and independently tested at Mahle, UK. Fuel economy was assessed in the condition vehicles were received. Testing occurred over 4000 km using Esso Synergy Diesel and the average increase in fuel economy in the cars tested was 1.8%. Benefits may vary depending on factors such as engine type, engine condition, driving style, and diesel previously used.

**Esso Synergy Supreme+ Diesel claims based on (1) internal or third party vehicle engine testing; and/or (2) government publications; and/or (3) industry or scientific literature. Esso Synergy Supreme+ Diesel has a double detergent treat rate, when compared to Esso Synergy Diesel. Benefits may vary depending on factors such as engine type, engine condition, driving style and fuel previously used. Esso Synergy Supreme+ fuels are available at selected Esso service stations only.

***European Commission

An initiative by FuelsEurope and the European Commission www.savemorethanfuel.eu