At Shell, we’re always looking for ways to get more from our fuels – and from your vehicle’s engine. Our scientists’ dedicated pursuit of this vision means that new Shell fuels, are our most efficient.2

From the moment you start the engine, new Shell FuelSave Unleaded helps protect your engine. It contains DYNAFLEX technology that helps reduce engine friction the instant you put it in your car, whether you are cruising the highway or stuck in traffic.3 And Shell FuelSave Diesel has new dirt-busting molecules for a clean and efficient engine,1 so you can focus on enjoying the drive.

All our fuels are designed for efficiency.4 Because wherever you go, we want you to go with confidence.

Shell fuelsave gasoline logo

Shell FuelSave Unleaded

With new friction-reducing and increased dirt-busting technology.5

Benefits

The new Shell FuelSave Unleaded has 20% more friction-reducing molecules than our previous formulations.6 It contains our new DYNAFLEX technology, which helps reduces wasted energy to help your engine run efficiently from the moment you start your engine.4

Shell fuelsave diesel logo

Shell FuelSave Diesel

New Shell FuelSave Diesel is designed to keep your engine clean and protected for efficient running.1

Benefits

In two different industry standard tests, new Shell FuelSave Diesel kept fuel injectors significantly cleaner than our previous formulation.5 That’s because it contains new dirt-busting molecules for a clean and efficient engine.7

What is DYNAFLEX technology or DYNAFLEX formulation?

  • DYNAFLEX technology or DYNAFLEX formulation are our names for our latest generation of advanced formulations for gasoline and diesel fuels. 
  • All of our latest generation of fuels are formulated with our new DYNAFLEX technology.
  • Just as petrol and diesel are different, we have developed unique DYNAFLEX formulations for each fuel type.
  • Modern engines are becoming more and more efficient. As a result, fuels are exposed to tougher conditions (i.e. higher temperatures and pressures) which can lead to the formation of dirt on key fuel system components such as intake valves and fuel injectors.
  • All DYNAFLEX formulations are complex blends that are specially designed to help maintain engine efficiency as the vehicle manufacturers designed. DYNAFLEX technology works by being enriched with powerful cleaning agents to help maintain the cleanliness of key fuel system components and protect them from performance robbing deposits.6
  • Our Shell V-Power is also designed to help clean away existing fuel system deposits.6
  • Our gasoline Shell fuels with DYNAFLEX technology also contain our new friction modifier which helps the piston assembly, found in the heart of engines, turn more freely to help reduce energy wasted as heat.7

How does DYNAFLEX technology work in engines?

Our Challenge – Deposits in fuel systems

Shell’s team of scientists have created bespoke DYNAFLEX formulations for diesel and gasoline engines. In creating our new DYNAFLEX formulations we drew on over 100 years of experience in fuels research and development. The world’s car manufacturers are on a quest for improved engine efficiency. Our new DYNAFLEX formulations draw on our experience and insights into the demands of both older and modern engines. Modern engines are becoming smaller whilst maintaining high power outputs and often use new technologies (such as direct fuel injection and turbocharging) to help achieve performance and efficiency. 

Deposits can form, over time, on key fuel system components such as fuel injectors in diesel engines and intake valves/fuel injectors in gasoline engines. Shell’s DYNAFLEX formulations are designed to help control dirt deposits in key fuel system components7.

Our Solutions

Shell FuelSave Diesel

In diesel engines, dirty injectors can contribute to inefficient combustion. DYNAFLEX technology in Shell FuelSave Diesel contains powerful new and improved cleaning molecule that help to maintain injector cleanliness.6 Tests have shown that engines running on Shell FuelSave Diesel with DYNAFLEX technology have significantly less deposit related power loss and cleaner fuel injectors help to maintain engine efficiency.6

Shell FuelSave Unleaded

DYNAFLEX technology in Shell FuelSave Unleaded is designed to help maintain the cleanliness of fuel system components, such as intake valves and fuels injectors with its advanced cleaning molecules.6 Maintaining fuel system cleanliness helps engines run as designed and cleaner intake valves/fuel injectors help to maintain engine efficiency.6

DYNAFLEX technology in Shell FuelSave Unleaded also contains our latest generation friction modifier.7 Friction occurs when moving parts slide over each other and is a source of waste and inefficiency in engines. One key area where frictional energy losses occur is between the pistons and the cylinder wall. The new friction modifier in Shell FuelSave Unleaded with DYNAFLEX technology works by forming a film on key piston assembly components help them slide over each other more freely resulting in less energy wasted and helping maintain engine efficiency.7 Our new Shell FuelSave Unleaded with DYNAFLEX technology, including new friction reducing molecules, have been demonstrated better performance under tougher conditions on the highway as well as in the city.9

Fill up when it’s cooler

Fuel myths vs. fuel facts

Have you heard the one about the fuel-saving magnet? Here we debunk five fuel efficiency myths to help you start saving fuel and drive smarter.

Myth #1:

Fill up when it’s cooler

Facts: The thinking goes: colder fuel will have a higher density, giving you more energy per litre at the pump. However, fuel is kept in underground storage tanks that maintain a constant temperature. Which means air temperature has little effect on your fuel’s density.

Changing your air filter always saves fuel

Myth #2:

Changing your air filter always saves fuel

Facts: Modern cars have a computerized system designed to regulate fuel flow – so a small difference in airflow is unlikely use more fuel. However, if the air filter does get blocked the overall engine performance is likely to be reduced so it’s good to keep up regular maintenance.

Restarting your engine uses more fuel than running idle

Myth #3:

Restarting your engine uses more fuel than running idle

Facts: If your engine’s running, it’s using up fuel. As a rule if you’re stopping for over 10 seconds, switch off your engine.

Cruising in neutral uses no fuel

Myth #4:

Cruising in neutral uses no fuel

Fact: It is extremely dangerous to drive in “neutral” as you are not in full control of the vehicle. Concerning fuel consumption cruising in neutral can use more fuel than driving in gear because the amount of fuel required to maintain optimum performance is determined by the Engine Management System. In many vehicles, fuel supply is essentially stopped when the foot is taken off the accelerator pedal whilst travelling in gear, whereas under conditions of idle (neutral / no gear), fuel is supplied to the engine to keep the engine running.

Disclaimers:

  1. Compared to Shell FuelSave Unleaded. Actual effects and benefits may vary according to vehicle type, vehicle condition and driving style. Helps to protect key fuel system components such as intake valves from the build up of performance robbing deposits. Friction reducing molecules help critical parts of your engine. No guarantees provided. 
  2. Helps to remove performance robbing deposits from key fuel system components such as intake valves and/or fuel injectors. Actual effects and benefits may vary according to vehicle type, vehicle age, vehicle condition and driving style. No guarantees provided. 
  3. Boosted compared to Shell FuelSave Unleaded. Engine condition improved by the removal of performance robbing deposits from key fuel system components such as intake valves and/or fuel injectors. Friction reducing molecules help critical parts of your engine. Actual effects and benefits may vary according to vehicle type, driving conditions and driving style. No guarantees provided.
  4. Friction reducing molecules help critical parts of your engine. No guarantees provided. 
  5. Compared to Shell FuelSave Unleaded. Actual effects and benefits may vary according to vehicle type, vehicle condition and driving style. Helps to protect key fuel system components such as intake valves and fuel injectors from the build up of performance robbing deposits. Friction reducing molecules help critical parts of your engine. No guarantees provided. 
  6. Helps to clean key fuel system components such as intake valves and/or fuel injectors from the build up of performance robbing deposits. Actual effects and benefits may vary according to vehicle type, vehicle condition and driving style.
  7. Friction reducing molecules help critical parts of your engine. Actual effects and benefits may vary according to vehicle type, vehicle condition and driving style. No guarantees provided.
  8. Compared to previous formulation of Shell FuelSave Unleaded in demonstration tests. Friction reducing molecules help critical parts of your engine. No guarantees provided. Actual effects and benefits may vary according to vehicle type, vehicle condition and driving style.
  9. Boosted compared to ShellFuelSave Unleaded in demonstration tests. Helps to clean key fuel system components such as intake valves and/or fuel injectors from the build up of performance robbing deposits. Friction reducing molecules help critical parts of your engine. 3x more molecules does not equal 3x more cleaning or friction reducing benefit. No guarantees provided. Actual effects and benefits may vary according to vehicle type, vehicle condition and driving style. 

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Shell V-Power - step on it and unleash the power

Shell V-Power is our best performance fuel thanks to our boosted DYNAFLEX technology.1 It not only helps improve engine condition, but also helps to maximize energy from the fuel.2

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