Diesel fuel quality information, ultra low sulfur


  • esso mobil station at night

    Synergy Diesel Efficient fuel for passenger vehicles

    Now drivers of diesel cars and trucks in Canada can visit Esso™ and Mobil™ stations to fill up with Synergy Diesel Efficient fuel – designed to help improve fuel economy and power.

  • trucker fueling

    Synergy Diesel Efficient fuel for fleets

    Synergy Diesel Efficient fuel also can help commercial vehicles improve their fuel economy and injector cleanliness, provide corrosion protection, and boost power and responsiveness.*

Diesel that never compromises on quality

Following the 2018 launch, Synergy Diesel Efficient fuel continues to roll out to select markets in Canada. Until it comes to your station, our existing Synergy™ diesel fuel will be available. All of our diesel fuels are held to high quality standards.

  • Blended to provide good ignition quality
  • Low-temperature fluidity to keep your vehicle moving in colder temperatures
  • Blended according to seasonal specifications
  • Learn more about the quality of our fuels

    Quality fuels to get you where you’re going

    Discover what steps we take to ensure the quality of our fuels.

    Learn more
  • Learn more about the right fuel for your vehicle

    The right fuel for your vehicle

    Get more out of your engine, and your journey, with Synergy™ gasoline.

  • Learn more how to get more out of every trip

    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.

  • Synergy Diesel Efficient™ fuel

    Synergy Diesel Efficient™ fuel

    It’s fully formulated to help you keep your diesel engines cleaner for up to 2% better fuel economy.† Take it from Bob Oakman, legendary monster truck announcer. Available only at Esso™ and Mobil™ stations.

*Applies to Synergy Diesel Efficient branded fuel compared to diesel fuel without detergent additive, and assumes a 946 litre tank and an average of 3 kilometres per litre. Vehicle testing showed an average fuel economy improvement of 2 percent. Actual benefits and fuel economy will vary depending on factors such as vehicle/engine type, engine conditions, driving style and diesel fuel previously used.

Improvements, such as fuel economy, are based on Synergy-branded gasoline, where and when available, compared to gasoline meeting minimum Canadian government detergency standards. Actual benefits will vary depending on factors such as vehicle type, driving style, and gasoline previously used. Concentration and availability of the 7 Key Ingredients may vary based upon factors beyond our control, including supply disruptions.

Esso, Esso Extra and Price Privileges are trademarks of Imperial Oil Limited. Imperial Oil, licensee.

Mobil, Synergy and Synergy Diesel Efficient are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries. Imperial Oil, licensee.

All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise. Imperial Oil, licensee.