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Synergy Diesel Efficient™ fuel for fleets

Believe the hype as only Bob Oakman can deliver it. Synergy Diesel Efficient™ fuel is fully formulated to help keep your engine cleaner for 2% better diesel fuel economy,** which means less maintenance and downtime. Only available at select Exxon™ and Mobil™ stations, where science and trucking come together, Synergy Diesel Efficient fuel has a unique formulation that 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

A big-rig love story

Believe the hype. Synergy Diesel Efficient fuel for fleets has captured the heart of legendary monster truck announcer Bob Oakman. Watch the video to find out if he’s ready for marriage.


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.

In cold climates, winterized Synergy Diesel Efficient fuel helped reduce occurrences of fuel gelling – which can cause fuel starvation, loss of engine power and stalling.


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2% Fuel economy
Diesel Efficient Fuel Downtime Quote


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    The right fuel for your vehicle

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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.

**Claims apply to Exxon and Mobil Synergy Diesel Efficient-branded fuel compared to diesel fuel without detergent additive. Actual benefits will vary depending on factors such as vehicle/engine type, driving style and diesel fuel previously used.

§§Benefits are based on Synergy-branded gasoline compared to gasoline meeting minimum U.S. government standards. Actual benefits will vary based on factors such as vehicle type, driving style and gasoline previously used.

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