Testing Diesel Fuel Quality: Where To Go?

where can i get diesel fuel tested

Diesel fuel testing kits are available for purchase online, and some companies that offer diesel fuel testing services include Blackstone Laboratories and Fleet Fuel Testing. These kits can be used to test for potential issues with diesel fuel, such as contamination by water, gasoline, or microbial bacteria, which can cause damage to the engine. Testing fuel quality can help prevent breakdowns and reduce the need for costly repairs to fuel pump systems and injectors.

Characteristics Values
Testing Location Fleet Fuel Testing, Blackstone Laboratories, Fuel Doctor
Test Type On-the-spot quality tests, fuel kits, water and microbial checks, gasoline, diesel fuel, and coolant testing
Test Parameters Spectral exam, flashpoint test for gasoline contamination, insolubles test for debris, water contamination, microbial bacteria, fungus, yeast, molds, algae, and other contaminants
Shipping UPS shipping to and from Blackstone Laboratories in Hazmat-certified containers within the continental US
Benefits Preventative maintenance, reduced equipment downtime, fewer breakdowns, reduced repair costs for fuel pump systems and injectors

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Diesel fuel testing kits

Blackstone Laboratories offers a diesel fuel testing kit that includes UPS shipping to and from their lab in Hazmat-certified containers. The lab will run tests on the sample to determine the fuel's condition and whether it meets specifications. Some of the tests included in the kit are a spectral exam and a flashpoint test, which checks for gasoline contamination.

Fuel Doctor also offers a diesel fuel testing kit that can be used by anyone in the field or in the workshop. Their testing kits will quickly, easily, and safely indicate water in the fuel or alert you to the presence of fungus, yeast, moulds, and bacteria.

AVI OnDemand offers a diesel fuel test kit that can be used to check the quality of the fuel by looking for contaminants, including water. It is a quick and simple test procedure that ensures the fuel meets the most important qualities, reducing parts failures.

O'Reilly Auto Parts offers a WIX Fuel Test Kit for diesel fuel analysis that comes with instructions and a one-year limited warranty.

In addition to these options, there are other companies that provide diesel fuel testing kits, such as Fleet Fuel Testing, which offers on-the-spot diesel fuel quality tests for various types of diesel fuels. Regular diesel fuel testing is a good preventive maintenance practice that can reduce equipment downtime and the cost of repairs to fuel pump systems and injectors.

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Testing for water contamination

Water contamination in diesel fuel is a common issue, often caused by rainwater getting into the diesel tank through an open fill point or vent, or condensation. Water in diesel fuel can cause costly engine problems, such as blown injector tips, plugged fuel filters, and other fuel system issues.

There are several ways to test for water contamination in diesel fuel. One way is to use a test kit, such as the Fuel Medic test kit or the FUELSTAT Fuel Contamination Test Kit, which can be used by anyone without any special skills or tools and provides results in just 5-15 minutes. These test kits utilise immunoassay antibodies to detect the presence of water and other contaminants in diesel fuel. They are a low-cost and fast way to check diesel fuel for water contamination and are suitable for various engine applications, including marine, power generation, transport, and general construction equipment.

Another way to test for water contamination in diesel fuel is to use a laboratory with fuel-testing capabilities. However, this option may be more costly due to handling, transport, and laboratory costs. Additionally, the fuel sample must be tested for contamination within 24 hours of being transported off-site, which can be challenging, especially when the sample is taken from a ship or offshore.

It is important to test for water contamination in diesel fuel regularly to prevent costly repairs and downtime. Testing for water contamination can help identify issues early on and ensure that the fuel is in good working condition.

Some symptoms of water contamination in diesel fuel include a change in appearance, with diesel fuel typically appearing clear and bright, but becoming cloudy or milky when contaminated. Other indicators include frequent replacement of fuel filters, the presence of nasty brown or black sludge, and rust and tank corrosion.

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Testing for microbial contamination

Diesel fuel contamination can have serious effects on fuel systems and tanks. Water is likely to be present in all diesel fuel systems, and it provides excellent conditions for microbial growth. Microbial contamination can lead to issues such as corrosion, biofilm development, surfactancy problems, and fuel degradation. Therefore, it is essential to regularly test for microbial contamination in diesel fuel as part of a maintenance program to detect issues early on.

There are several test kits available that can detect microbial contamination in diesel fuel. These kits can be used by anyone and can provide fast, easy, and safe indications of microbial growth. Some common tests include:

  • Immunoassay antibody tests: These tests, such as FUELSTAT®, can detect specific microbes that threaten fuel. They are quick, easy, and can be conducted on-site with minimal equipment, providing results within minutes.
  • ATP testing: This test detects any living microorganism present, including those that may not be dangerous to the fuel. It requires a 'reader' equipment and is usually conducted off-site in a laboratory, adding to the overall time and cost.

It is important to choose a suitable test kit that can accurately detect harmful microbes while avoiding false alarms, which can lead to unnecessary costs and downtime. Regular testing and preventive maintenance can help reduce equipment downtime and costly repairs to fuel pump systems and injectors.

In addition to testing, removal and prevention of microbial growth may require the removal of water from the tank, filtration, and/or treatment with biocide additives. Companies like Intertek offer fuel condition monitoring services and kits to help locate, identify, and treat microbial infestations in diesel fuel systems.

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Testing for gasoline contamination

Diesel fuel contamination can lead to engine damage, inadequate performance, and equipment damage. Testing for gasoline contamination in diesel fuel can be done in a laboratory or on-site.

On-site Testing

On-site testing can be done using test strips and hydrometers. Test strips are submerged in a fuel sample, and the colour change is compared to a reference chart. Hydrometers measure the density of diesel fuel. The hydrometer floats at a degree that is contingent on the fuel's density. A higher density reading than anticipated could indicate contamination.

Laboratory Testing

Specialized labs use chromatography, spectroscopy, and filtration to analyze fuel quality. Labs can also carry out distillation tests to measure the range of temperatures at which different components of the fuel vaporize. This helps assess volatility, which is important for starting engines in different climates.

Testing Kits

Diesel fuel testing kits are also available and can be used by anyone in the field or in the workshop. These kits can detect water, fungus, yeast, moulds, and bacteria in the fuel.

Flashpoint Test

The flashpoint test can be used to determine if gasoline has been added to diesel fuel. When gas is added to diesel, it lowers the flashpoint. The extent of contamination depends on the amount of gas added.

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Testing for physical indicators of contamination

Diesel fuel testing is essential to ensure efficient engine performance, minimise environmental impact, and extend equipment lifespan. One of the primary indicators of diesel fuel contamination is the presence of water, which can foster microbial growth and lead to sediment formation. Water contamination can be detected through visual inspection, water separation tests, or using water detector capsules. Microbial contamination, including bacteria, fungi, yeast, and mould, can be identified through specialised lab tests or by comparing the colour density of the sample with a provided colour chart.

Another critical aspect of testing for physical indicators of contamination in diesel fuel is assessing the presence of debris or insolubles. This can be done through visual inspection or by conducting a particulate lab test, which measures the size and mass of particulate matter in the fuel samples. The detection of debris or insolubles may indicate the need for additional filtration before the fuel can be safely used.

Additionally, diesel fuel testing may involve checking for indicators of fuel degradation, such as changes in colour, the presence of sediment, or water layers. Fuel degradation can occur due to exposure to air, moisture, and temperature fluctuations. To mitigate degradation, proper storage, tank maintenance, and chemical treatments like fuel polishing are recommended.

Furthermore, flashpoint tests can be conducted to determine if gasoline has been added to diesel fuel, as this will lower the flashpoint. The extent of contamination depends on the amount of gasoline added. Testing for physical indicators of contamination in diesel fuel is crucial to prevent equipment failure and ensure the reliability of diesel engines.

Frequently asked questions

You can get diesel fuel tested at Blackstone Laboratories, using their diesel fuel test kit.

The kit includes UPS shipping to and from Blackstone Laboratories in Hazmat-certified containers (available in the continental US only). It also includes tests with commentary on whether the fuel meets specifications.

The tests include a spectral exam, a flashpoint test, and an insolubles test.

You can also use a high-performance diesel fuel testing kit from Fuel Doctor. These kits test for water, bacteria, fungus, algae, and bugs.

Fleet Fuel Testing also makes on-the-spot diesel fuel quality tests for all diesel fuels.

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