Keep stored fuel clean, stable and ready when equipment needs it
DFS tests, filters, cleans and treats stored diesel fuel to help protect engines, emergency systems and critical operations.
Oil Analysis • Filtration & Reclamation • System Cleaning • STLE-Certified Reliability Support
Fuel problems are often hidden.
A full tank doesn't always mean reliable fuel.
Water and sediment build up over time.
Free water, emulsified water and particulates collect in storage tanks where they can damage equipment.
Microbial growth can contaminate fuel.
Bacteria and fungi thrive in contaminated fuel and can create sludge, corrosion and clogged filters.
Stored fuel changes while it sits.
Fuel stability can decline over time, increasing the risk of problems during operation or emergency startup.
Know what’s in your fuel before it reaches your equipment.
DFS sampling and testing help identify contamination, monitor fuel condition and support better maintenance decisions.
TANK-BOTTOM SAMPLING
Collect representative samples from the bottom of storage tanks, where water and contaminants are most likely to accumulate
VISUAL INSPECTION
Inspect fuel for visible signs of water, sediment, discoloration and other indicators of contamination
LABORATORY TESTING
Evaluate fuel through spectrochemical, sediment, water and fuel-stability testing to better understand its condition
MICROORGANISM TESTING
Identify bacterial and fungal growth that can contribute to sludge, corrosion and clogged filters
ANNUAL SAMPLING PROGRAMS
Track fuel condition over time with routine sampling that helps identify developing issues before they affect equipment
CHECK YOUR FUEL CONDITION
Not sure what’s in your storage tank? DFS can recommend the appropriate sampling and testing program for your operation
Restore contaminated fuel instead of automatically replacing it
Services are available for bulk storage tanks, generator tanks, equipment fuel tanks
and fuel being transferred into a clean system.
Assess the fuel
Evaluate the condition of the stored fuel and determine the appropriate filtration and polishing approach.
Remove contaminants
Remove water, sediment and other contaminants that can affect fuel quality and equipment performance.
Verify the results
Confirm whether the treated fuel meets the applicable ASTM specification for continued use.
Return the fuel to service
Qualifying diesel fuel may be returned to the applicable ASTM specification and placed back into service.
Remove the contamination
filtration cannot reach
Sediment, sludge and microbial debris can remain on tank surfaces and continue contaminating fuel. DFS selects the appropriate cleaning method based on the tank configuration, contamination and safety requirements.
Automated high-impact tank cleaning
Confined-space cleaning
Sediment and sludge removal
Minimal-intrusion cleaning methods
Address microbial growth at its source
When testing confirms bacterial or fungal contamination, DFS provides a measured treatment program designed to address the source of the problem.
Confirm contamination
Identify the presence and extent of bacterial or fungal growth through fuel testing.
Apply treatment
Apply the appropriate biocide treatment based on the contamination identified.
Polish the fuel
Remove remaining contamination after treatment to help restore fuel quality.
Verify the results
Retest the fuel and document the results.
Biocide is used as part of a controlled corrective process—not as a substitute for removing water, sludge or contaminated debris.
Greater confidence when your equipment has to start
A properly maintained fuel system helps protect equipment, improve reliability and reduce the costs associated with contaminated fuel.
IMPROVE RELIABILITY
Support dependable standby
and day-to-day
equipment operation.
REDUCE FUEL COSTS
Help lower fuel
replacement and
disposal expenses.
LOWER MAINTENANCE RISK
Reduce maintenance needs
and the risk of
unexpected breakdowns.
EXTEND FILTER LIFE
Keep filters cleaner
for longer with
better fuel quality.
IMPROVE SERVICE RECORDS
Maintain clearer testing,
treatment and maintenance
documentation.
REDUCE FUEL WASTE
Reduce the amount
of contaminated fuel
requiring disposal.
DFS combines sampling, filtration, tank cleaning and treatment into one coordinated response, saving your team from managing multiple service providers.
Verify the work.
Document the condition of your fuel before and after service.
SUPPORT YOUR MAINTENANCE RECORDS
Maintain clear documentation to support
future maintenance planning and service decisions.
Sampling and laboratory results
Treatment and filtration records
Findings and recommended next steps
VERIFY THE WORK
Confirm the services performed and
the condition of the fuel after treatment.
Before-and-after documentation
Confirmation against applicable
fuel specifications
Don’t take our word for it
“Their proactive inventory monitoring helps prevent product shortages and keeps our operation running efficiently.”
SPARE PARTS COORDINATOR
Plastics Manufacturer
Protect the fuel your operation depends on.
DFS can assess the condition of your stored fuel and recommend the testing, filtration, cleaning or treatment needed to keep it ready for service.
Not ready yet?
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