Frequently asked questions
Existing Esso™ Key to the Highway™ cardholders
- Prior to purchasing fuel at Esso cardlock and travel centre locations, review the Safe fuelling tips on our Tips for truck drivers page until you are thoroughly familiar with all procedures.
- Safely park and secure your truck at a refueling island.
There are three types of site configurations for making fuel transactions in the Esso Commercial Cardlock™ network. For instructions on completing transactions in different site configurations, download this PDF.
Please contact Esso Key to the Highway customer service at 800-264-9495 or imperial@efsllc.com with any questions.
If interested in the Esso Key to the Highway fleet card
Fleet managers get a customizable program with competitive pricing, simple purchase management and reporting features. Volume-based discounts are available at Esso Commercial Cardlocks™ in Canada, as well as participating TA, Petro and TA Express travel centers across the US.
Drivers can access more than 160 Esso™ cardlocks™ and travel centres across Canada, including stations in British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, Quebec and Nova Scotia. (Some of these Esso cardlock locations were formerly standalone Husky cardlocks or Husky cardlocks at Husky Travel Centres). Drivers with Esso Key to the Highway fleet cards can also visit 9,000+ non-Esso US truck stops (if set up to fuel in the US).
Explore more benefits on our Why choose Esso Key to the Highway fleet card page.
Did you know?
We’re growing: The Esso Commercial Cardlock™ network continues to expand across Canada. Between 2017 and 2019, more than 80 former standalone Husky cardlocks and Husky cardlocks at Husky Travel Centres were re-branded Esso. And new Esso cardlock and travel centre locations continue to be added to the network. As of today, there are more than 160 Esso cardlocks in eight provinces from coast to coast. Find an Esso cardlock near you.
More than just a fill-up: At more than 50 Esso cardlock travel centres across Canada, drivers can park their truck and visit the restroom, grab a snack or a meal, and take a shower. Where available, drivers can also do their laundry or take it easy in a comfortable lounge. Download our complete list of Esso cardlocks to see the full range of amenities available at each location.
More kilometres per tank: Available at a growing number of Esso cardlock locations across Canada, Diesel Efficient™ fuel delivers the benefits today’s truckers are looking for. This pre-additized diesel fuel helps you go up to 2% further without the hassle, as compared to diesel without a detergent additive. It boosts engine power and responsiveness, reduces emissions and burns cleaner, improves injector cleanliness and provides corrosion protection. Learn more here.
*Applies to Diesel Efficient fuel compared to diesel fuel without detergent additive. Vehicle testing showed an average fuel economy improvement of 2%. Actual benefits will vary depending on factors such as vehicle/engine type, driving style and diesel fuel previously used. Concentration and availability of our proprietary additive package may vary based upon factors beyond our control.-
Diesel Efficient™ fuel
Diesel Efficient fuel is fully formulated, helping to keep your engine cleaner for better fuel economy,* which can mean less maintenance and downtime– and improve your bottom line.
Discover the Diesel Efficient fuel difference
To learn more about other Esso products and services for businesses and consumers, visit the Imperial Oil website.
© Copyright 2003-2025 Imperial Oil Limited. Esso, Esso Commercial Cardlock and Key to the Highway are trademarks of Imperial Oil Limited. Imperial Oil, licensee. Diesel Efficient is a trademark or registered trademark of Exxon Mobil Corporation or one of its subsidiaries. Imperial Oil, licensee. Other trademarks shown are property of their respective owners.