Follow me to diesel fuel economy. Bob Oakman, Legendary Monster Truck Announcer Synergy Diesel Efficient

Synergy Diesel Efficient™ fuel for fleets, light-duty trucks and passenger vehicles

Believe the hype as only Bob Oakman can deliver it. Synergy Diesel Efficient fuel is fully formulated to help keep commercial vehicle engines cleaner for 2% better diesel fuel economy,** which means less maintenance and downtime. It also helps improve mileage and deliver more power in light-duty trucks and passenger vehicles.

  • Fuel economy icon

    Increase fuel economy by an average of 2%*

  • Engine icon

    Boost engine power and responsiveness

  • Decreasing Emission icon

    Reduce emissions and burn cleaner

  • Badge icon

    Improve injector cleanliness and provide corrosion protection

A big-rig love story

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

Believe the hype

Synergy Diesel Efficient fuel for light-duty trucks and passenger vehicles inspires legendary monster truck announcer Bob Oakman to amp up the oomph. Watch the video to find out how crazy he can get.

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

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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Quality fuel, discounted pricing and rewards for drivers

Exxon™ and Mobil™ programs for fleets

No matter the size of your fleet, we have a fleet program that can help you control costs and improve fuel economy.

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Your fleet’s new superpower

Introducing FleetPro™ from Exxon and Mobil

Designed for diesel and mixed-fuel fleets that require access to both commercial fueling locations and retail gas stations, FleetPro offers competitive nationwide discounts, Mastercard® acceptance and more.

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  • Easy rewards and payment on the mobile app.

    Exxon Mobil Rewards+™ app

    It’s the convenient, fast and secure way to pay for fuel, earn points and get rewarded.

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    The right fuel for your vehicle

    Get the most out of your engine, and your journey, with Exxon and Mobil Synergy™ 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.

**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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