- Early Detection of Contamination
- Stay in Compliance with Industry and Manufacturer Standards
- Save Time and Money Through Prevention
- Real-Time Data & Transparent Reporting
Your Broomfield Fuel Quality Experts
You know what makes fuel testing different here in Broomfield? Altitude matters. Temperature swings matter. The way diesel behaves at 5,430 feet isn’t the same as sea level, and that affects everything from storage to combustion. We’ve spent years understanding how Colorado conditions impact fuel quality—from microbial growth in storage tanks during humid summers to winter gelling that can cripple your fleet overnight.
Fleet Core brings owner-operator commitment to every test. We’re not just running samples through a lab and sending reports. We’re analyzing your specific situation, considering your equipment, your usage patterns, and your operational demands. Whether you’re running a hospital’s backup generators or managing a transportation fleet across the Front Range, we tailor our testing protocols to what actually matters for your operation. That’s what being an energy partner means—we’re invested in your success, not just completing transactions.
Why Choose Us
Complete Fuel Management, From Testing Through Delivery
Fleet Core doesn’t just test your diesel—we manage every aspect of your fuel health and operations. Whether you need scheduled fuel polishing, emergency diesel delivery, fuel storage tank cleaning, or ongoing monitoring, we handle it all. This integrated approach means your fuel stays reliable, your equipment stays protected, and your operations stay on track. You get one trusted partner instead of juggling multiple vendors.
Fuel Delivery
Save on High Quality Diesel and Gasoline When You Buy Direct
Diesel delivery in Broomfield means more than just showing up with a truck. Our mobile fueling eliminates downtime from off-site refueling runs, schedules deliveries around your operations (not the other way around), and provides transparent reporting on every gallon. Whether you need emergency response at 2 AM or scheduled weekly fills, we’re there—24/7, no middlemen, no surprises. And when you skip the middelmen by buying direct from Fleet Core you save.
Fuel Polishing
Clean Fuel, Confident Operations
Contaminated diesel doesn’t fix itself—it gets worse. Our fuel polishing program removes water, sludge, and microbial growth through multi-stage filtration, restoring your stored fuel to optimal condition. Think of it as preventive medicine for your fuel supply, safeguarding uptime before problems spiral into emergency repairs.
Tank Cleaning
Stop Fuel Problems At the Source
Fuel storage tanks collect sediment, water, and biological contamination over time, it’s just physics and chemistry doing their thing. Our diesel tank cleaning program removes accumulated sludge and debris through vacuum extraction and specialized treatments, preventing contamination from ever reaching your equipment. Clean tanks mean clean fuel, and clean fuel means fewer headaches for facility managers and fleet coordinators who’ve got enough on their plates already.
Spill Cleanup
Eco-Friendly Oil & Fuel Cleanup: Fast Cleanup When Spills Happen
Petro Buster tackles petroleum spills with heavy-duty cleaning power that’s safe for the environment and effective on contact. This industrial-strength degreaser handles everything from minor drips to major incidents, breaking down oil and grease fast so you can restore surfaces and meet cleanup requirements. One application, serious results—that’s the Petro Buster difference.
Oil Analysis
Identify Breakdowns BEFORE They Happen
Knowing what is going on in your engine can be the difference between a successful delivery and a thousand-dollar tow. Our expert oil analysis can help you spot an issue before it leaves you broken down by the side of the road.
Who We Serve
Energy Reliant Businesses That Demand
Managing large vehicle fleets across the Denver metro demands the confidence that your diesel is clean and fuel management is efficient. Overseeing backup generators for healthcare facilities means contaminated fuel could compromise critical care during emergencies. These aren’t hypothetical concerns. They’re the daily reality for Aurora’s fleet operations and critical infrastructure managers. Fleet Core’s diesel fuel testing in Aurora serves professionals who depend on absolute reliability.
Fleet Management
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Fleet Management
Your Challenge
Ensuring optimal fleet uptime and performance without disruptions and escalated costs
Our Solution
Reliable delivery and clean, high-performance lubricants and fluids that minimize wear, reduce sludge, meet regulatory guidelines, and keep your fleet running smoothly
Construction Site Management
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Construction Site Management
Your Challenge
Managing remote sites, with rigorous timelines, requiring uninterrupted fuel-dependent operations, needing multiple essential fluids solutions
Our Solution
Integrated essential fluids offerings aligned to site schedules, equipment needs, operational demands, and budget requirements
Project Management
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Project Management
Your Challenge
Managing tight timelines, defined budgets, environmental regulations, safety requirements, and performance expectations
Our Solution
Flexible, on-site delivery options, integrated essential fluids solutions, and cost-effective performance-enhancing products
Our Value
Confidence. Control. Continuity.
Protect Your Equipment With Our Essential Fluid Services
Colorado businesses demand high performance and Fleet Core’s Essential Fluid Services support dynamic operational conditions.
Lubrication
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Lubrication
- Lubricate engine components
- Minimize friction
- Prevent damage from metal-on-metal contact
Cooling
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Cooling
- Cool engines
- Absorb heat
- Prevent breakdown and failure
Washer Fluid
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Washer Fluid
- Crystal clear operator vision
- Vehicle safety
- Winter operations protection
Emissions Compliance & Performance
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Emissions Compliance & Performance
- Improve performance
- Eliminate smog and illness
- Maintain regulatory compliance
Testimonials
Our Commitment To Excellence
Fleet Core is more than just a fuel and fluid provider — we are your comprehensive ENERGY PARTNER supporting operational reliability, productivity, and sustainability.
“Great company and great service!! Employees are well trained and very professional!!”
“Fleet Core offers excellent customer service. They complete the commitments they make and take care of their clients.”
“Great Diesel and Service. Extremely low temps and Core Power didn’t let me down. I would recommend Fleet Core and Core Power diesel to anyone in the Denver area.”
“Quick and efficient on-site fuel delivery.”