Fuel Polishing

Most Diesel Fuel Contamination Is Found Near The Storage Tank Bottom.

Water, rust, bacteria, fungi, and sludge being heavier than fuel, can be found under the fuel at the tank bottom. As much as 90% of the upper fuel in a storage tank may be un-contaminated if left undisturbed. Laboratory tests have proven that well designed fuel polishing system will separate fuel contaminates from the fuel in one pass through the system without effecting the clean fuel. Diesel Fuel Problems Over the last several years we have seen the sulfur content in diesel go from 5,000 parts per million to 15 parts per million (ultra low sulfur) to comply with emissions standards. Reducing the amount of sulfur in diesel fuel renders the fuel vulnerable to microbial growth. In addition to removing oxygen and nitrogen, the process for removing sulfur from fuel requires introducing water.

When fuel becomes contaminated, the water in diesel fuel becomes a breeding ground for filter clogging bacteria and fungus. Without proper maintenance, sitting water can become a veritable petri dish in your fuel tank.

Benefits for polishing diesel fuels:

In diesel fuel tanks colonies of filter clogging bacteria and fungus will grow at the fuel/water interface. The by product of these colonies is acidic sludge which corrode tanks and engine components. Engines may be exercised regularly and operate properly and to specification. However inside the fuel tank, out of sight, free and emulsified water is slowly accumulating from condensation, leaky tank openings, and even fuel deliveries with high water absorption. As the evening temperature falls the water begins to condense out of the fuel and build inside of the tank. When the fuel/water interface grows high enough to reach the engines fuel supply tube which may be one or more inches above the tank bottom; the filter clogging microbes will be drawn into the fuel system and stop the engine.

  • A pro-active fuel tank cleaning program will prevent unexpected engine shut down.
  • Remove the tank bottom water and the micro-organisms will die.
  • Filters will not clog.
  • Tanks will not corrode from the acidic sludge.
  • Fuel Injection Systems will not be damaged by water and corrosion.
  • Emergency Generators will not become the Emergency.

A Pro-Active fuel cleaning program will eliminate these problems.

Fuel Additives… Solvents… Catalysts… Liquid Tank Cleaners. Use Caution Before Diluting Fuel With Chemicals That Might Harm Engines!

A large number of aftermarket additive products are available to meet real or perceived needs. Some are aggressively marketed with testimonials and bold performance claims that seem “too good to be true. Some so called “catalysts” actually contain xylene, a solvent used in paint thinner and wood preservatives.

There is no easy way to dissolve sludge and clean a fuel tank. Some additives may effect the operation of your engine.

Always read the ”Material Safety Data Sheets (MSDSs)” before using any additive or catalyst. Ask “Is this good for my engine? Additives should always be used in accordance with the recommendations of the engine manufacturer. As with any purchase, it is wise to remember the advice, caveat emptor, “let the buyer beware. ”It may be helpful to regard additives as medicine for fuel. Like medicine, they should be prescribed by an expert who has made an effort to get test results from a fuel sample sent to an independent laboratory to diagnose the problem, as well as the underlying causes. Sometimes, indiscriminate use of additives can do more harm than good because of unexpected interactions.

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