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Fuel Problem Solving

What Problems are there? and how we can help you...

Some Common Fuel Problems


Water, rust and dirt accumulate in the bottom of storage tanks. Water either from leakage and/or condensation.


The oxidation process of fuel results in the production of gums and sediments.


The fuel in storage tanks can sometimes develop a dirty slime at the fuel/water interface. Apart from being unsightly it can block tank strainers and vehicle fuel filters. If left unattended it can spoil the Fuel Bugsfuel and contribute to tank corrosion.

The most common contamination is from Cladisporium Resinae.

These airborne spores which occur naturally in diesel, have an oxygen source from the water and use the elements as a food source to propagate growth.

It becomes evident because of the fact that filters  clog up, vehicles may lose power and their overall performance deteriorates.

The conventional method of eradicating the bug is to use a biocide. However, this has two major drawbacks in that both the water and the dead bug remains in the system and removal is costly.

Sulphurous acids cause the build up of waxes and resins on injector pintels and, which may leach into oil components.

The warnings are piston rings sticking or the rings and cylinder lines wearing to the point of excessive blow-by or oil consumption. As these warnings are not dramatic but accurate over time engine users attribute the gradual drop in performance due to the age of the vehicle.

During combustion, sulphur in fuel forms various sulphur oxides which combines with the moisture in the intake air to produce sulphuric acid. This acid accumulates in the engine lubricating system. Suspended in the oil, it chemically attacks cylinder lines, piston rings, exhaust valve guides and other engine parts.

The problem can get worse:-

  1. The more mileage traveled the greater the fuel consumption, the greater the sulphur intake.

  2. The higher the sulphur content through minimal refining the larger the acid content.

  3. High humidity aggravates fuel sulphur wear.

  4. When engines operate at lower than normal temperatures moisture condensation increases. This depletes the oil additives and combines with sulphur in the fuel to make more acid.


  1. Increased oil consumption.

  2. Increased crankcase blow-by.

  3. Vapour visible in the crankcase blow-by.

  4. Black exhaust smoke.

  5. Oil analysis showing increase in sulphur and decrease in alkalinity.

How We Help You

Liquid Engineering product "Fuel Set" is a  fuel conditioner for diesel and petrol engines, both fuel injected and aspirated. Fuel Set is a powerful, cost effective TREATMENT FOR THE PROBLEMS listed above saving you TIME,Fuel Set EQUIPMENT & MONEY.

Fuel Set prevents fuel from going stale and also prevents moisture, gums and fuel bugs from forming, as well as cleaning injectors.

Uncommon Problems
There exists some problems which are not described in this section. We suggest if you have a specific trouble  which is not mentioned above, you email this information to one of our Technical Support staff by contacting us immediately. We welcome the opportunity to review your problem.

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