Truck at Pump Synergy Diesel Efficient

Synergy Diesel Efficient™ fuel for fleets  

Diesel fuel designed to take you further. Coming soon to a truck stop or commercial station near you.

Backed by advanced science and technology, Synergy Diesel Efficient fuel is designed to improve fuel economy and enhance performance in Class 8 heavy-duty trucks. That means a typical driver can travel an average of 35 more miles on every tank.* It helps to:

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    Increase fuel economy by an average of 2 percent*

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    Boost engine power and responsiveness

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    Reduce emissions and burn cleaner

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    Improve injector cleanliness and provide corrosion protection


Get a closer look

Holland Special Delivery experienced a 2 percent increase in fuel economy, less DEF consumption, fewer active re-gens and an increase in the performance of their trucks.

See how we developed Synergy Diesel Efficient fuel — and what its advanced formulation can mean for your business.

When drivers and owner-operators at Challenger Motor Freight in the US and Canada used Synergy Diesel Efficient fuel, their trucks had better fuel mileage and performance.


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2% Fuel economy

Diesel Efficient Fuel Downtime Quote


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  • About Exxon Mobil Corporation

    Energy to take you further

    Learn more about ExxonMobil, including milestones in our history and our ongoing commitment to environmental performance and supporting local communities.

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  • Our fuel types, gasoline, diesel and octane ratings

    The right fuel for your vehicle

    Get the most out of your engine, and your journey, with Exxon and Mobil SynergyTM gasoline and diesel.

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  • Tips to help you improve fuel efficiency

    Get more out of every trip

    Explore our comprehensive list of tips to help you improve fuel efficiency and get more out of every trip.

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  • New Synergy gasoline

    Exxon and Mobil Synergy™ gasoline

    Learn more about our Synergy™ gasoline, engineered with 7 key ingredients to help you get better gas mileage.*

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*Applies to Exxon and Mobil Synergy Diesel Efficient branded fuel compared to diesel fuel without detergent additive, and assumes a 250 gallon tank and an average of 7 miles per gallon. Vehicle testing showed an average fuel economy improvement of 2 percent. Actual benefits will vary depending on factors such as vehicle/engine type, driving style and diesel fuel previously used.

Exxon, Mobil and Synergy are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries. Other trademarks and product names used herein are the property of their respective owners.

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