- 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
Lakewood Businesses Trust Fleet Core’s Fuel Expertise
You know what separates a good fuel provider from a great one? It’s understanding that every gallon delivered impacts your bottom line. Fleet Core has spent years perfecting fuel delivery and management throughout Colorado’s Front Range, and frankly, we’ve seen it all, from construction sites to reefer trucks rolling down Colfax .
Our owner-operated approach means when you call, you’re talking to people who actually understand your challenges. We’re not some distant corporate entity pushing generic solutions. Instead, we’re your neighbors who happen to know everything about keeping fuel systems running smoothly, whether you’re dealing with Colorado’s unpredictable weather or tight project deadlines.
What really sets us apart is our commitment to preventing problems before they happen. Sure, anyone can deliver fuel when you’re running low. But can they test your stored fuel for contamination? Can they polish your diesel to prevent costly equipment damage? Can they provide detailed analytics that help you optimize your entire fuel management strategy? That’s where Fleet Core shines.
Complete Fuel Solutions: Run, Manage, and Store
Fuel Delivery
On-Site Fuel That Arrives Exactly When You Need It
Our mobile fuel delivery service brings premium diesel, gasoline, and specialty fuels directly to your Lakewood location, saving valuable time and reducing operational disruptions. Whether you’re managing a construction fleet or powering critical backup generators, we ensure your fuel supply never becomes a bottleneck.
Diesel Fuel Testing
Know What’s Really in Your Tank Before It’s Too Late
Contaminated fuel can destroy expensive equipment faster than you’d think, which is why our comprehensive diesel testing identifies water, microbial growth, and other harmful contaminants before they cause damage. Regular testing isn’t just smart maintenance, it’s insurance for your most valuable assets.
Fuel Polishing
Clean Fuel Equals Reliable Performance
Our fuel polishing process removes water, sludge, and contaminants that naturally accumulate in stored fuel over time, restoring your diesel to like-new condition. Think of it as a health spa for your fuel, we remove everything that doesn’t belong and return fuel that burns cleanly and efficiently.
Tank Cleaning
Fresh Start for
Maximum Fuel Quality
Professional fuel storage tank cleaning eliminates built-up sediment, microbial growth, and corrosive elements that compromise fuel quality and equipment performance. Clean tanks mean cleaner fuel, which translates to fewer maintenance headaches and longer equipment life.
Spill Cleanup
Spills Happen, Our Petro Buster Makes Them Disappear
When oil or fuel spills occur, Petro Buster petroleum cleaner cuts through the toughest residues without harsh chemicals that harm the environment. This biodegradable solution breaks down petroleum products quickly, leaving surfaces clean and safe for continued operations.
Oil Analysis
Your Equipment’s Health Report in Black and White
Regular oil analysis reveals exactly what’s happening inside your engines, transmissions, and hydraulic systems before expensive failures occur. Our detailed reports identify wear patterns, contamination levels, and potential problems, giving you the data needed to schedule maintenance strategically rather than reactively.
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.”