fb Fuel Delivery for Businesses Across Southern Ontario | Dowler Karn

For All Your Fueling Needs:


farmer climbing onto tractor

Agriculture & Farming Fuel Delivery


Many of our products that our agriculture customers use daily are:

  • Dyed Diesel
  • Clear Diesel
  • Gasoline
  • DEF
  • Furnace Fuel
  • Tobacco Curing Oil
  • 24/7 Delivery

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residential house heated by fuel delivered from dowler karn

Residential Fuel Services


Many of our customers use furnace fuels for home heating appliances as well as domestic water heaters. Residential fuel services include:

  • Tank Monitoring
  • 24/7 Delivery
  • Budget payment plan
  • Local branches with local experts
  • Heating Oil Promotion

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driver filling their car with fuel from one of our 24-hour fuel centres

24-hour Fuel Access Centres


An ideal and convenient solution for people and business on the go. Products and services available vary by location and include:

  • Dyed Diesel
  • Clear Diesel
  • Gasoline
  • DEF
  • 24/7 Delivery
  • Propane
  • Auto Propane
  • Lubricants

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Commercial & Industrial


Let us work with you to plan and implement energy solutions and delivery systems tailored to your business. Some of the products that our commercial and industrial customers use daily include:

  • Dyed Diesel
  • Clear Diesel
  • Gasoline
  • DEF
  • Propane cylinders
  • Lubricants
  • 24/7 Delivery

Find Out More

Esso Diesel Efficient

Clean fuel injectors make all the difference

Esso Diesel Efficient fuel™ is the first diesel fuel designed to clean fuel injectors to deliver the power, reliability and productivity you need from your equipment. Patented detergent additives clean out fuel injectors and keep them clean, preventing unplanned maintenance and extending equipment lifespan.

Discover the Esso Diesel Efficient difference

Automatic Delivery

You can count on worry-free delivery from Dowler-Karn.


Our Automatic Delivery is one of the most popular services we offer.

Our delivery system is based on “degree days”, which means we deliver energy based on outside temperatures. In other words, we know with a long spell of cold weather, you will use more fuel to heat your home or barn. This method makes sure we keep you topped up. Typically, furnace oil customers will see a Dowler-Karn delivery truck about six times per winter.

Tank Monitoring

Customers whose operations are heat critical or who are large volume customers may find tank monitoring to be the best solution.


This is one way Dowler-Karn will remove the worry about the level of fuel in your tank. For more information, contact a Dowler-Karn Branch near you!

Diesel Exhaust Fluid (DEF)


DEF is a supplement placed in the petrol tank of diesel-powered vehicles and breaks down NOx and other pollutants before these hazards are converted to DEF.

Learn more about the benefits of Diesel Exhaust Fluid

Contact our specialists for pricing and more information today.

Let us work with you to plan and implement energy solutions and delivery systems tailored to your business.

Contact a Dowler-Karn Branch near you