- 24/7 Emergency & Scheduled Fuel and Fluid Services
- Guaranteed Quality of CorePower Premium Diesel Fuel
- Real-time Delivery Updates and Transparent Billing
- Integrated Fuel Services – Run, Store, Manage
Trusted by Aurora’s Transportation Fleets, Construction, and Critical Service Providers
You know what sets Fleet Core apart from national fuel brokers? We’re not just another fuel supplier – we’re your energy partner. Our owner-operated approach means every client gets direct access to decision-makers who understand the unique challenges of Colorado operations, from altitude adjustments to unpredictable weather patterns.
We’ve been serving Aurora businesses for years, and honestly, there’s nothing quite like the satisfaction of preventing a costly shutdown before it happens. Whether you’re dealing with diesel gelling in winter or contaminated fuel threatening your equipment, our team combines local expertise with cutting-edge solutions to keep your operations humming.
Complete Fuel Management Solutions for Your Operations
Fuel Delivery
On-Demand Fuel That Arrives When You Need It Most
Our fuel delivery service eliminates the guesswork from fuel management, bringing premium diesel, gasoline, and specialty fuels directly to your location. From emergency deliveries during Aurora’s surprise snowstorms to scheduled bulk deliveries for your fleet operations, we’ve got the logistics figured out so you can focus on what matters most.
Diesel Fuel Testing
Know Your Fuel Quality Before Problems Start
Prevent unnecessary wear and replacement of filters and disastrous replacement of fuel systems with fuel testing from Fleet Core. Professional diesel fuel testing reveals contamination, water content, and microbial growth before they damage expensive equipment. Our comprehensive analysis gives you the data needed to make informed decisions about fuel treatment, replacement, or polishing, because replacing a fuel system is way more costly than regular testing your diesel fuel.
Fuel Polishing
Clean Fuel Equals Peak Performance
Advanced fuel polishing services restore contaminated diesel to like-new condition, removing water, debris, and microbial growth that threatens engine performance. Think of it as a spa day for your fuel – we filter out the nasties and add protective additives that keep your diesel fresh longer than you’d expect.
Tank Cleaning
Professional Storage Tank Maintenance You Can Count On
Expert fuel storage tank cleaning removes sludge, water, microbial and other contaminants that accumulate over time in Colorado’s varied climate conditions. Our thorough cleaning process not only restores tank integrity but also prevents future contamination issues that could sideline your entire operation.
Spill Cleanup
Accidents Happen, Eco-Friendly Cleaning Solutions
Petro Buster petroleum cleaner tackles oil and fuel spills with remarkable efficiency, breaking down hydrocarbon chains for easier cleanup and environmental compliance. Whether it’s a small leak in your facility or emergency spill response, this powerful degreaser gets the job done without harsh chemicals that damage surfaces.
Oil Analysis
Identify Breakdowns BEFORE They Happen
Detect early signs of engine wear and contamination with precision oil analysis. Gain insights that help you prevent costly breakdowns and extend the life of your fleet.
Who We Serve
Operational Leaders Depend on Fleet Core’s Essential Fluid Services
To run seamlessly, vehicles and equipment require high performance fluids, regular maintenance, and periodic testing.
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 — Fleet Core 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.”