Effortless Performance & Compliance: Fleet Core’s Diesel Exhaust Fluid (DEF) Delivery
A Seamless Supply Chain Experience For Modern Diesel Engines

What We Do
Our Fleet Core Advantage: Built For Colorado Businesses

Fleet Core combines local expertise with deep, owner-operator commitment to customer-focused service, ensuring businesses across the Rockies are always fueled for success. From our reliable emergency response capabilities to custom solutions for diverse industries, we consistently earn the trust of Colorado’s growing industries.
For Colorado-based Fleet Managers, Construction Site Leaders, and Project Managers, our critical DEF Delivery energy service ensures compliance with emission regulations, enhances engine performance, fuel health, and efficiency, and prevents costly operational downtime.
Our Service Offering and Benefits
Elevate Complicance and Performance with Our Diesel Exhaust Fluid Delivery
What is Diesel Exhaust Fluid (DEF)?
DEF is a non-toxic, non-hazardous, and colorless liquid made from a mixture of 32.5% high-purity urea and 67.5% deionized water. It plays a crucial role in reducing harmful emissions from diesel engines by breaking down nitrogen oxide (NOx) emissions into harmless nitrogen and water vapor. This process, called Selective Catalytic Reduction (SCR), is an essential component of modern diesel engine technology.
The Environmental and Cost-Saving Benefits of DEF
Cleaner Emissions with SCR Technology
SCR technology, when paired with DEF, is a game-changer for businesses with diesel fleets. By converting harmful NOx emissions into harmless nitrogen and water vapor, SCR systems significantly reduce the environmental impact of diesel engines, contributing to a cleaner and greener planet.
Improved Fuel Efficiency
In addition to reducing emissions, SCR technology can also result in improved fuel efficiency for your diesel fleet. This leads to cost savings on fuel consumption, making it a smart and responsible choice for any business with diesel vehicles.
Compliance with Emission Regulations
Utilizing DEF in conjunction with SCR systems ensures that your fleet complies with stringent emission regulations. This not only contributes to a cleaner environment but also helps your business avoid potential fines and penalties for non-compliance.

Why Choose Us
The Fleet Core Advantage in Diesel Exhaust Fluid Delivery

Premium DEF Quality
- Sourced from leading manufacturers to ensure the highest purity for optimal performance.
- Tailor-made for Selective Catalytic Reduction (SCR) systems, guaranteeing compliance with EPA guidelines.
Fast, Reliable Delivery Options
- 24/7 availability for mobile or bulk DEF delivery, optimizing your operations with convenience.
- Single and multi-site delivery planning to accommodate business-wide needs.
On-Site Expertise
- Full support for DEF tank setup, maintenance, and contamination prevention.
- Fleet Core drivers undergo extensive safety training, ensuring smooth and risk-free delivery on every trip.
Customized & Economical Solutions
- Flexible, volum-based pricing with competitive rates.
- Designed to meet your unique DEF requirements while boosting cost-efficiency.
Who We Serve
Your Operations Matter: Here’s How We Help With DEF Delivery
DEF plays a crucial role in reducing harmful emissions from diesel engines cleaner emissions, improved fuel efficiency, regulatory compliance.

Fleet Management
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Fleet Management
Your Challenge
Optimizing fleet performance and ensuring environmental compliance.Our Solution
Timely DEF delivery prevents vehicle delays or compliance risks, while IoT-enabled tracking simplifies resource management.
Construction Site Management
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Construction Site Management
Your Challenge
Fueling remote sites efficiently and meeting rigid deadlines.Our Solution
On-site DEF delivery supports high-performance heavy-duty machinery operations on critical projects and keeps you in compliance while delivering results.
Project Management
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Project Management
Your Challenge
Keeping timelines and budgets intact while complying with regulations.Our Solution
Cost-effective DEF supply and advisory support streamline execution, support performance and efficiency requirements, and minimize compliance risks.Our Value
Strategically Efficient Features of Fleet Core DEF Delivery

1. Advanced DEF Monitoring Systems
Gain accurate insights into DEF usage trends and inventory levels for optimal delivery scheduling.
2. DEF Storage Customization
Collaborate with Fleet Core to create tailored automotive-grade storage and dispensing systems.
3. Environmental Responsibility
Compliance with EPA standards ensures sustainability is integrated into operations.
4. Logistics Efficiency
Enhanced route planning has reduced DEF consumption gaps Fleet Core customers by as much as 25%, maintaining compliance timelines reliably.
5. Remote Site Success
Fleet Core has supported DEF refueling at extended project sites, enabling over 90% adherence to daily completion goals for site managers.