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.
Increase fuel economy by an average of 2%*
Boost engine power and responsiveness
Reduce emissions and burn cleaner
Improve injector cleanliness and provide corrosion protection
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.
Keep business on the road
Broad commercial fleet card acceptance
Manage your mixed-fleet and heavy-duty business and fuel expenses with even broader acceptance of EFS, Fleet One and T-Chek fleet cards at Exxon™ and Mobil™ high-speed diesel and retail pumps.Find a station
Here, there and everywhere
Go further with your fleet card
Manage your fleet’s fuel expenses with FleetPro™ or BusinessPro™ credit cards. Both offer nationwide location acceptance, spending controls and reporting, flexible terms, loyalty benefits for you and your employees, and 24/7 customer service.Learn more about FleetPro™ and BusinessPro™ credit cards
Download the Exxon Mobil Rewards+™ app
It’s the convenient, fast and secure way to pay for gas, earn points and get rewarded through the Exxon Mobil Rewards+™ program. Start saving with every fuel-up of gasoline.See app details
Quality fuel, discounted pricing and rewards for drivers
No matter the size of your fleet, we have a fleet program that can help you control costs and improve fuel economy.Learn more
Fuelman® is welcome everywhere
Now you can fill up with Synergy Diesel Efficient™ using your Fuelman® credit card at all 12,000+ locations, with 800+ Exxon and Mobil high-speed diesel pumps across the country.See where Fuelman is accepted
Diesel engine oils
Mobil Delvac™ diesel engine oils are the choice of leading heavy-duty equipment manufacturers as well as drivers and fleets around the globe when it comes to keeping engines protected on the road.Learn more about Mobil Delvac diesel engine oil
*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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