Diesel Exhaust Fluid (DEF) in Dallas-Fort Worth

Does your equipment or fleet use DEF? Many modern high-efficiency diesel engines require the use of DEF. DEF works by breaking down the nitrous oxide in exhaust into nitrogen and water, making your diesel engine more environmentally friendly. Foster Fuels is proud to provide DEF delivery services throughout the DFW area, offering an affordable and hassle-free way to obtain high-quality DEF.


When your equipment, generators, or vehicles require Diesel Exhaust Fluid (DEF), Foster can provide hassle-free delivery directly to your site in the Dallas-Fort Worth area. We know the importance of keeping your business up and running, and our DEF delivery service in DFW allows you to do just that, without the added stress of searching for a DEF supplier.


The Environmental Protection Agency (EPA) mandates the use of DEF in diesel trucks to ensure proper functioning. Vehicles equipped with DEF systems have indicators similar to fuel tanks, and a warning light will alert the driver when the DEF level is low. For many vehicles, running with an empty DEF tank may limit the speed to 5 mph until refilled. The same applies to vehicles with contaminated DEF in their tanks.

At Foster, we prioritize not only the delivery of DEF but also your peace of mind in adhering to regulatory standards. Let us handle your DEF needs, so you can focus on what matters most—your work. Contact Foster today for reliable DEF delivery in DFW!

DEF Tank and Transport

Foster will deliver DEF directly to you, no matter where you are in the Dallas-Fort Worth metroplex. That means no more scrambling to provide your vehicles with DEF or running to high-priced retail stores. We offer same-day delivery to save you time and money.

Why Choose Foster Fuels for Your Diesel Exhaust Fluid Delivery in DFW

When you choose family-owned Foster Fuels, our expertise and friendly customer service ensure you receive high-quality DEF to keep your fleet running. We are a licensed fuel provider in 48 states, offering 24/7 fuel delivery services 365 days a year. This means no matter where or when you need us, we’ll be there. Partnering with Foster offers many distinct advantages to your business, fleet and equipment:

  • Same-day DEF delivery: We won’t leave you waiting around for your vital DEF delivery.
  • Auto-fill services: Don’t worry about calling for DEF. When you choose our auto-fill services, our team will check your tank and bill you as needed.
  • Full-service capabilities: We offer a wide variety of other fuel delivery services throughout the DFW area.
  • Capable team: With Foster, you can always count on friendly, reliable and knowledgeable service.
  • Affordable: We’ve earned a reputation for providing first-rate services at sound, competitive prices.

Contact Foster Fuels Today for DEF in Dallas

At Foster Fuels, our goal is to exceed your expectations and establish a long-standing partnership built on trust, performance and expertise. Although we’ve been in business for nearly 100 years, we continually push our limits to ensure we’re at the forefront of innovation and industry standards.

If you would like to learn more about mobile DEF delivery in DFW and our other fuel delivery services, we invite you to contact us today.

Flexible Payments

Foster offers flexible payment methods and terms that suit your business. Whether you want to pay by check or a credit or debit card, or have a corporate online billing portal, we say yes! Want your tank rental factored into your per-gallon price? We say yes.

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