“Water”  Your fuels worst enemy


Virtually all diesel fuel contains some moisture. Additional water accumulates in tanks as atmospheric moisture condenses. Moisture accumulates in diesel tanks as condensate droplets on exposed tank surfaces, as dissolved water in the fuel and as water bottoms beneath the fuel. Microbes depend on this water for growth. Additionally, microbes depend on the organic and inorganic molecules in diesel fuel for nutrition.

As the bacteria and fungi reproduce inside your fuel tank they form filter clogging clusters or biomass at the fuel water interface. The dead cells fall to the tank bottom as acidic sludge. If ingested into the engine corrosive deposits form on engine components, fuel injectors may be damaged, and engines may stop running.

Ethanol Blended Gasoline

Most vehicles are designed to run on 87 octane, but others with high compression engines require a higher octane fuel. For example, the 2016 Honda Civic requires fuel with a minimum octane rating of 87 while some high-performance vehicles require at least 91 octane.

E-10 blends start as low 85 octane gasoline, then 113 octane ethanol (10%) is added to bring the octane up to 87 which is required.

If storage tank bottom water is mixed with the E-10 product, phase separation will occur where the ethanol will be drawn to the water and the gasoline product’s octane level is lowered below the acceptable specification. Your engine will not run on out of spec. gasoline.

Water should never be allowed to accumulate in fuel storage tank bottoms.

Mobile Fuel Polishing Systems

Mobile Fuel Tank Cleaning and Polishing Systems

Fuel Filtration Systems

to remove contamination and maintain clean, dry fuel

(828) 212-1141

Automatic Fuel Polishing System

Automatic 24-7 Fuel Filtration Systems

Who We Serve

Fueltec Systems provides a broad range of maintenance products for stored fuels worldwide.

Retail Fuel Station

When your business depends on clean fuel. Fueltec has the solution for remediating phase separation in ethanol blended gasoline or removing contaminates from diesel fuel.

Mission Critical

Mission Critical

When the lights go out and your diesel engines have to operate sometimes in a life or death situation. Fueltec is there with systems tailored to your application.



Trucks and locomotives rely on clean diesel. Fueltec has the answer to keep your fleet running 24-7.



Government agencies and military units rely on all fuels: diesel, gasoline, and jet fuel. Fueltec’s systems for all fuels are in use worldwide.


Marine Fuel Cleaning

Water and contamination must be removed from both gasoline and diesel marine tanks for safe operation. When you need a system that can be used for all fuels, FuelTec has you covered.

Power Generation

Power Generation

When your diesel engines have to operate without hesitation. Fueltec has the solution to insure that your fuel is pristine.

Petroleum Well Sites


When you need a partner that understands 24-7 diesel generator operation. Fueltec is there with both mobile and permanent solutions.

Fuel Polishing Service

Fuel Polishing

If you are just starting a fuel polishing service or adding to an existing company, Fueltec has the mobile systems and support for your diverse needs.

Fueltec’s Model 955ACH


  •  Variable Flow 35 GPM Diaphragm Pump will remove heavy sludge, rust, and phase separation without emulsification or further phase separation.

  • For use on gasoline, diesel, ethanol blends, and jet fuel.

  • Air Compressor 25 CFM Atlas Copco with electric start engine

  • Supply and return hoses

  • Separated water drain hose

  • Cam lock fittings

  • No hazardous electric cords required

  • Flat free 13 in. tires and locking casters

 On Sale Thru July 31, 2019

for only $ 8,995.00  for the complete system

How to Select the Right Fuel Filtration System

  • When choosing a system; keep in mind that 99% of the contaminates in a fuel storage tank, including water, are heavier than the fuel and will be found at the bottom 10% of the tank.

  • You won’t have to filter the entire contents of the tank unless the fuel has been disturbed or mixed. In that case it should settle to the tank bottom within 24 hours.

  • Always select a mobile system that has a clear water separator sight gauge that will show you water as it is being removed from the fuel.

  • The water separator should remove water from your fuel to less than 50 parts per million with a hydrophillic coalescer and hydrophobic water separator. Gravity separators are not acceptable.

  • A well designed mobile system will have one micron disposable low cost filter to remove contaminates like rust, sludge, and bacteria clusters that could clog engine filters.

  • Filter and water separator housings should be made from stainless steel or other acid resistant material; powder coated steel will chip and rust in time.

  • Be Safe!  Don’t use portable electric fuel polishers with gasoline or jet fuel. Electric cords and explosive vapors are not a good mix.

  • When working on diesel or gasoline storage tanks that have water contamination; high velocity pumps are not the answer. They will only cause more problems: diesel fuel will emulsify and not separate from the water, and ethanol blended gasoline will phase separate and become out of spec. with a low octane rating. It is best to use a polishing system with a low or variable velocity pump to separate the water from the fuel at a slow rate, then increase the velocity to remove particulate contaminants.

  • Always take a fuel sample from the tank bottom before and after fuel polishing.

Questions? Just ask, Call Today        828-212-1141

For more info or to schedule a visit to learn and operate our fuel polishing systems in real time at our facility in North Carolina.