- State-of-the-art cleaning technology for thorough results
- Experienced technicians trained in safety and compliance
- Flexible scheduling to minimize disruption to your operations
- Comprehensive fuel testing and analysis
We Know Fuel Storage Tank Issues Inside and Out
Here’s what most people don’t realize: contaminated fuel doesn’t just make engines run rough. It creates a domino effect. Water settles in your tank’s low points, bacteria feed on it, sludge forms, and before you know it, fuel lines are clogged, injectors are failing, and your crew is sitting idle waiting for parts. That’s where professional tank cleaning becomes less of an expense and more of an investment that pays dividends.
We’ve cleaned tanks for construction sites where contaminated fuel was costing thousands weekly in downtime. We’ve serviced fleet operations across the Front Range where microbial growth had become a chronic problem. We’ve backed up hospitals, farms, and city departments when their backup generators wouldn’t fire because their fuel tanks were compromised. That’s not just experience—it’s a track record of solving problems that most fuel suppliers won’t even acknowledge.
Why Choose Us
Aurora’s Trusted Partner for Fuel Storage Tank Care and Complete Fuel System Health
Fleet Core has spent years perfecting fuel storage tank cleaning and management across Aurora and throughout the Colorado region. We understand the unique operational pressures of construction sites, fleet operations, hospitals, farms, and municipal departments. We’re not just cleaning tanks—we’re protecting the operations that depend on them.
Here’s how fuel storage tank cleaning benefits your company:
Prevents Equipment Failures Before They Happen
- Removes contaminants that corrode fuel injectors, pumps, and filters
- Extends engine and equipment lifespan by years
- Eliminates microbial growth that breeds cascade failures
Cuts Operational Costs and Downtime
- Eliminates expensive emergency repairs triggered by fuel contamination
- Removes barriers to smooth fuel flow and engine performance
- Reduces the frequency and severity of unexpected shutdowns
Ensures Regulatory Compliance and Environmental Safety
- Supports EPA and state fuel quality standards
- Prevents spills and contamination that trigger compliance violations
- Demonstrates responsible fuel handling during audits and inspections
Delivers Peace of Mind Through Data-Driven Maintenance
- Provides transparent reporting on tank condition before and after cleaning
- Integrates with fuel testing to confirm water content and microbial presence
- Enables scheduled maintenance rather than reactive crisis response
Our Service Offering
Fleet Core Preventive Maintenance Services
We take a comprehensive approach to tank maintenance, leaving no detail overlooked:
Fuel Tank Inspections & Diagnostics
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Fuel Tank Inspections & Diagnostics
Evaluate sediment levels, tank structure, and surface seals to detect risks early.
Advanced water-testing paste locates moisture contamination before it affects performance.
Water, Sludge & Sediment Removal
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Water, Sludge & Sediment Removal
Safely extract contaminants and prevent corrosion and microbial growth for clean, reliable fuel flow.
Fuel Stabilization, Restoration & Filtering
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Fuel Stabilization, Restoration & Filtering
Add stabilizers to maintain fuel usability in long-term storage, preventing oxidation and degradation.
Detailed Compliance Reporting
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Detailed Compliance Reporting
Receive full documentation confirming your tanks meet regulatory and environmental requirements.
Why Regular Maintenance Matters
The Risks of Neglect
Leaving tanks unchecked invites risks no operation can afford:
- Contaminated Fuel: water and sludge lead to clogged filters, microbial growth, and fuel inefficiency.
- Corrosion Hazards: tank rust weakens structural integrity and increases the risk of leaks.
- Regulatory Trouble: outdated or degraded tanks can fail inspections and incur financial penalties.
Fleet Core tackles these risks head-on, so you can focus on running your business — not worrying about your fuel system.
How Often Should Tanks Be Maintained?
Stay proactive with a schedule designed for your tank type:
- High-Use Tanks (Generators and Fleet Systems): maintenance annually ensures reliability during critical times.
- Long-Term Storage Tanks: every 2–3 years, depending on environmental conditions, prevents sediment buildup and fuel degradation.
Speak with Fleet Core to create a maintenance plan customized to your operations.
Trusted by Industry Leaders for Fuel and Lubrication Management
Fuel Delivery
On-Site Refueling That Keeps Your Operations Moving Without Delay
Whether you need scheduled diesel delivery for predictable consumption or emergency fuel when unexpected demand hits, Fleet Core’s mobile fleet fueling service reaches your Aurora location 24/7. Our on-site fuel delivery eliminates the wasted time, productivity loss, and supply chain risk that come with driving offsite to refuel.
Diesel Fuel Testing
Quality Assurance That Catches Problems Before Equipment Does
Diesel fuel testing and analysis reveal contamination levels, water content, and microbial activity before they trigger failures. When you know the condition of your fuel, you can address issues surgically rather than scrambling during a crisis.
Fuel Polishing
Restore Fuel Quality & Protects Equipment Life
Fuel polishing removes dissolved water, particulates, and microbial contaminants through multi-stage filtration, restoring fuel to like-new condition. By staying ahead of contamination with customized fuel polishing schedules, you prevent rust, microbial growth, and debris damage that leads to expensive repairs and unplanned downtime.
Eco-Friendly Oil & Fuel Spill Cleanup
Accidents Happen, We Can Help
When fuel or oil spills happen, and they do, Petro Buster Petroleum Cleaner & Degreaser cuts through contamination quickly and safely, preventing environmental violation fines and reputational damage. Heavy-duty degreasing power combined with eco-forward formulation means you’re protecting your operation and your community at the same time.
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
Your Operations Matter: Here’s How We Help With Diesel Tank Cleaning
Fleet Core custom-tailors diesel tank cleaning to meet the needs of key industry professionals across Colorado.
Facilities Management
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Facilities Management
Keep Power Online in Critical Moments
Backup generators cannot afford compromised fuel. Fleet Core ensures your emergency systems are always ready, protecting against failures during power outages or generator tests.
Environmental Compliance Management
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Environmental Compliance Management
Achieve Total Regulatory Compliance
Avoid costly penalties with tank cleaning services designed to meet eco-standards. Our process ensures environmentally responsible waste handling, giving you full confidence in your compliance.
Fleet Management
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Fleet Management
Protect Uptime for Fleets
Contaminated fuel leads to downtime and disrupted schedules. Fleet Core keeps your fuel systems clean, so your vehicles stay on the road and revenue stays steady.
Construction Site Management
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Construction Site Management
Prevent Project Delays
Dirty tanks damage equipment and derail timelines. Fleet Core ensures your heavy machinery operates reliably under demanding conditions.
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.”