Synergy diesel efficient

Introducing Synergy Diesel Efficient  

Fuel and programs designed to take you further.
Backed by advanced science and technology, new Synergy Diesel Efficient diesel fuel is engineered to improve your fleet’s fuel economy* in commercial vehicles. But that’s just the beginning. Combine the benefits of Diesel Efficient with our Fleet payment card and Plenti® rewards, and you have a complete program for savings on the road and beyond.
  • Diesel efficient

    Diesel Efficient

    Synergy Diesel Efficient diesel fuel is designed to deliver an average 2 percent improvement in fuel economy in both Class 8 heavy-duty and light-duty trucks. That means a typical driver can travel an average of 35 more miles on every tank.* It helps to improve injector cleanliness, provide corrosion protection and boost power and responsiveness.*

    Synergy Diesel Efficient diesel fuel is currently only available at a limited number of pilot locations in the Grand Rapids, Michigan market. Contact your ExxonMobil representative for further details.

  • Exxon mobil synergy card

    Fleet payment card

    Exxon and Mobil formed a unique partnership with WEX Fleet One to create the new Synergy Diesel Efficient Commercial Card.


    • Single-card solution — whether you fuel at truck stops, convenience stores or both, we take care of your mixed-fleet needs
    • Nationwide fueling network including more than 7,000 truck stops and more than 60,000 convenience stores (available soon)
    • Cash services available — so drivers are never stranded
    • Extended terms available to qualifying fleets

    Protect your bottom line

    • Flexible pricing options offering fuel savings or discounts
    • Enhanced purchasing controls mean drivers can’t spend outside your policies

    The Synergy Diesel Efficient Commercial Card is the newest member of ExxonMobil’s extensive business card suite. ExxonMobil now has an attractive, flexible payment option for every U.S. fleet or business.

    The card is currently for use in select locations, but soon will be available across our expansive national network.

  • Plenti Program, gas rewards, save money on gas

    Plenti rewards program

    Now you can reward your drivers at no additional cost. Exxon and Mobil are exclusive fuel partners with Plenti, a rewards program that gives drivers points for fill-ups at participating Exxon or Mobil-branded stations. Then, they can redeem points for savings at checkout at their favorite Plenti partners including Exxon and Mobil-branded stations, AT&T, Macy’s and Rite Aid. It even encourages them to choose the stations that help you save money.

    Plenti rewards program >

Get a closer look

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

See our fuel in action >

  • 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.

    Learn more
  • 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.

    Learn more
  • 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.

    Learn more
  • New Synergy gasoline

    Exxon and Mobil SynergyTM gasoline

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

    Learn more
*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.
The ExxonMobil Fleet payment card is issued by WEX Bank.
Plenti is a rewards program. Participation is subject to the Plenti Terms and Conditions. You must fully enroll to become a member and use points. You can enroll at Points have no monetary value and expire after 2 years. Participating partners and offers are subject to change without notice and are subject to geographic availability, location exclusions and additional terms. All rights reserved.