Oil Tank Cleaning Specialists Ltd - Tipperary Munster Ireland


Welcome from Oil Tank Cleaning Specialists Ltd Co Tipperary.

Specialists in bulk fuel filtration, purifcation & separation solutions.

We're the first choice for complete oil and fuel solutions:

  • Fuel Polishing
  • Filtration
  • Purification
  • Separation
  • Hazardous fuel tank cleaning  

Working with the DFU-NX range, the most advanced products of their kind which is Suitable for almost all oil and fuel treatment applications, providing a superior solution that's designed with modern fuel and oil problems in mind.



Why filter:

Under normal conditions, diesel will age as a result of diesel components reacting with oxygen in the air, forming a fine sediment and gum, which can block filters and cause wear and tear in injectors and fuel pumps, leading to poor combustion and a build up of soot and carbon deposits.


  • Contact with Zinc, Copper or Alloys containing them. Resulting reactions can form unstable compounds.
  • The presence of water can allow growth of fungus and bacteria. These produce organic acids and water which make the fuel unstable
  • Exposure to dust and dirt which may contain trace elements of Zinc and Copper
  • Exposure to high temps increases the natural ageing as described above
  • Fuel composition. Some components in fuel naturally age quicker. Also if there is a percentage of biofuel present

FIRST AID FOR OILS AND FUELSWe specialize in the supply of filter elements, filter bodies and filtration clean-up systems for oil, fuel, biodiesel, glycol and process fluids as well as a range of laser particle counting instruments and contamination patch test kits. We also have an in-house laboratory for accurately determining the type and quantity of contamination and water present in any given sample of oil or fuel. Our First Aid for Oil and First Aid for Fuel brochures explain the issues surrounding water and particulate contamination and how to rectify the issues.  It also details our oil and fuel polishing equipment as well as test and monitoring services.

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John Clarke

Could you inspect and certify a 9000 litre fuel proof JetA1 bowser? Thanks

Seamus and Tom

Contaminated fuels will cost the motorists around €250m this year in vehicle defects.

Seamus and Tom

Doran Oil
Doran Oil is the first company in Ireland to be awarded the fuel cleanliness certificate under the Oil Tank Cleaning Specialists scheme. Their supplies and tanks will be checked rigorously checked every quarter by Oil Tank Cleaning Specialist Ltd. "The market is extremely tough say's Seamus Doran from Doran Oil if there is a problem the first thing the buyers do is blame the fuel especially those who neglect to clean their tanks. A lot of bio fuels hold moisture inside and they rarely clean their tanks to get rid of it so it's good to say that our fuel is quality accredit and certified. We felt like we needed to show that not only are we a family business, we have morals and business ethics and wanted to show we have quality products as well"
Doran Oil has depots in Thurles and Cashel with a fleet of four tankers serving all of Tipperary and Kilkenny.

Seamus and Tom

Do you have contaminated oil and fuel issues?
Blocked engine filters
Sluggish engine performance
Water in oil and fuels
Microbial growth in fuel (Diesel bug)
Damaged injectors
Tank corrosion
Pump failure
Sludge at the bottom of tanks

Seamus and Tom

Our fuel advisory service reports on the following:

Cleanliness expressed as an ISO code
Water content ppm, derived from a Karl Fischer technique test
Simple traffic light system for easily interpreting the results
Your fuels condition relative to the accepted requirements by the WWFC
Alert to the presence of diesel bug
Recommended action to remediate the fuel (if required)
A microscope photograph of the contaminants present in the fuel caught on a 0.8 micron slide

Seamus and Tom

Companies can no longer afford to ignore
the health of their fuel. If you need your
equipment to run properly you also
need an effective fuel health solution.
Fortunately, we’re here to help.
0504 45554 - 086 8538338

Seamus and Tom

DFU-NX - Next generation efficiency, intelligence & power for the best oil & fuel polishing performance yet.

Seamus and Tom

Efficiency, intelligence and power for the best oil and fuel polishing performance yet.

Experts in fuel & oil health.

Seamus and Tom

Water: Delivered in fuel condensation through vents/breathers
Microbes Air borne through vents in delivered fuel if water is present
Dirt Delivered in fuel
Corrosion in tanks
Through vents if mesh is damaged/inadequate
Paraffin At cold temperatures from +10 'C and below resulting in blocked filters

Seamus and Tom

65% of all unwanted stoppages are caused by particles, water and oxidation
Excessive water creates rust & high wear in injectors and fuel pumps.

Products & services


Particle Pal - particle monitor

Our award winning Particle Pal is the most effective oil and fuel cleanliness monitor on the market!

The Particle Pal is a self-contained system, complete with integral pump and controlled flow rate. Whether on-site or in the laboratory, the Particle Pal will provide cleanliness readings in real time to allow you to fully understand the condition of your oils and fuels.

Powerful trending software will allow for data to be displayed in graphical format for real-time trend analysis. The Particle Pal will identify the cleanliness code of the fuel or oil, which will alert to the need for corrective action. It can draw from fuel or oil stored in tanks or from sample bottles. Fluid samples are analysed quickly and accurately, thereby minimising the frequency of laboratory analysis.

The award winning Particle Pal will allow you to quantify the level of solid contamination in your oil or fuel and will alert you to the presence of high moisture levels and diesel bug for you to decide what corrective action to take. We have developed a range of Particle Pal options for a variety of applications.

Products & services


We work with a full range of static and portable oil and fuel polishing units for the removal of solid particulate, water and diesel bug. Which assist in overcoming industry challenges associated with contamination. We have a wide range of standard systems to suit most applications, but if you have more of a challenge. Please contact us to discuss your requirements.

We also provide a range of filter housings, replacement cartridges and inserts, a low-cost fuel advisory service and both online and portable particle counters.


Whatever element(s) you are looking for, we can help. Whether you are looking for originals or cross over / alternative elements, our experienced team will be happy to help.

Quality - Our range of filters includes hydraulic, fuel, coolant and process filters for water through to heavy gear oils. Whilst we are an official distributor for Schroeder, we can also provide both originals and alternatives for Hydac, Pall, Baldwin, Parker and UCC, EPE, Mahle, MP Filtri, Stauff, Internormen, Donaldson and many others, all at competitive prices. We will be happy to provide you with a free, no obligation quote on your current filter usage - we will always do our best to beat the prices you are paying.

Responsive - We understand that quick response time is paramount and endeavor to get back to you same day where possible. We also hold large quantities of stock and operate a next day delivery service so that, more often than not, you can have your order with you the following day.

Products & services


Oil Tank Cleaning Specialists LTD supply a huge range of filter housings for hydraulic filtration and lubrication applications. We are the official Irish distributor for Schroeder products.  

Schroeder's award winning products include filter housings, filter elements, breathers and oil conditioning products. 

We supply a range of stainless steel bag filter housings for industrial process applications.

Products & services

OUR FUEL ADVISORY SERVICE -Your fuel might be contaminated or have diesel bug present. Take advantage of OUR low cost advisory service.

We offer impartial advice and guidance on the cleanliness and condition of your fuel including any recommended action - delivered in a simple, easy to understand format.

With the recent changes in the modern fuel specifications, contaminated fuels, whether in storage or in the distribution chain, are now widespread. Solid particles, diesel bug and water are real issues that can leave fuel unfit for use, clog filters and cause engine failures.

From a sample of fuel posted to us we will quickly determine the level and make up of contamination present, both solid particulate (including the presence of diesel bug) and give a water content ppm value determined via a Karl Fischer test. Each sample is low cost and a 2-3 day report turnaround is normal. On the test report sheet we will also advise what, if any, remedial action should be considered in order to return the fuel to a useable state.

Our fuel advisory service reports on the following:

  • Cleanliness expressed as an ISO code
  • Water content ppm, derived from a Karl Fischer technique test
  • Simple traffic light system for easily interpreting the results
  • Your fuels condition relative to the accepted requirements by the WWFC
  • Alert to the presence of diesel bug
  • Recommended action to remediate the fuel (if required)
  • A microscope photograph of the contaminants present in the fuel caught on a 0.8 micron slide

Products & services


We provide a versatile range of filter cartridges and cells whatever your application. Our cartridges and cells filter out water by chemically locking it into layers of super-absorbent media. They are of high quality and the highest efficiency. Water removal efficiency is not affected by surfactants or additives and, once captured, the water cannot be squeezed out.

Here at Oil Tank Cleaning Services Ltd we also understand that the cost of consumables can soon add up. That is why we have worked to ensure the cost of our cells and cartridges are amongst the lowest on the market.

Products & services


A full range of oil & fuel filtration systems with flow rates from as little as 5 through to 1000 litres per minute.

Low cost disposable filter cells - keep your running costs to a minimum. Choose from our extensive range from 1-400 micron cells. Suitable for most oil & solid removal applications.

High efficiency multi-layer cell -  More layers equals better performance. Filtration efficiency allow for single pass efficiency for those jobs where cleanliness needs to be guaranteed.

Pleated high efficiency cell - We've taken more of our high performance filter media and pleated it to offer maximum surface area and performance. Available in for exceptional filtration performance.

Water removal cell for oils & fuels - With up to 3x more water removal capacity, recent field test data shows rapid water reduction levels from 44,000ppm in a single pass.

Reusable nylon cells - Available from 25pm - 1000pm these cells can be cleaned and reused, Rugged nylon construction for bulk particulate removal.

Oil out of water cell - If you have contaminated water with oil or fuel, this cell will remove the hydrocarbon and release the water.

Stainless steel mesh cells - Available in a variety of mesh sizes, these cells are robust and designed to withstand even the most demanding filtration challenges.

MagnaGrab - MagnaGrab catches ferrous particulate and debris which extends the life of the filter cell.


Products & services

Keeping It Clean

"Raising the standard of of fuel quality throughout Ireland"

As increasing amounts of biofuel are added to the fossil fuel supply, it is becoming more imperative that the customer receives clean fuel to drive advanced engine technology. The FPS has introduced its Fuel Certification Scheme with this one aim in mind. This feature sets out why biofuels have been introduced, the implications for fuel storage and the need for significant testing to ensure the supply of clean, quality fuel.

It's a fact more biofuels must be used to reduce greenhouse gas emissions from transport which currently run at a fifth of the country's total output.

But adding a growing proportion of fuels distilled from corn and biodiesel made from rapeseed, used cooking oil and tallow is not without its problems. It is well known that the EN 14214 standard was revised as high concentrations of palm oil were being used during 2008/09. That meant blocked filters on petrol forecourts across Ireland.

In 2013 it was reported a Government think-tank's findings that contaminated fuels would cost the motorists around €250m this year in vehicle defects. That's a problem worth fixing and shows why guaranteeing fuel quality is quickly becoming the major priority for the supply industry.

There are several common problems to over come to provide the clean fuel customers require:

FUEL STABILITY: Biodiesel has a maximum storage life of 6 months, although some bodies suggest it should be stored for no longer than 3 months.

EXTERNAL CONDITIONS: Water heat and sunlight can affect fuel quality. Tanks must be clean, dry and water free before they are used.

ADDITIVES AND MIXING BLENDS: It's not always clear exactly what is in the fuel being stored. While most additives carry out their intended job, mixing them together can result in reactions which can block pump filters or even cause engines to break down.

BAD DELIVERIES: We've all heard the horror stories but these might not always be the fault of the delivery company. The issues may have started two or three steps down the delivery chain.

So what can the industry do? We all know fuel contamination is commonplace... we need to identify it, stop it from spreading and remove it.

FPS FUEL ACCREDITATION SCHEME, administered by Oil Tank Cleaning Specialists Ltd, certifies tank installations by way of constant monitoring.

We leave no stone unturned during the installation  and testing process. Fuel are obtained on a pre-determined frequency and reports generated. It usually takes around 12 months to achieve the appropriate certification. That time allows thorough monitoring of the complete installation, guaranteeing that fuel being dispensed from a tank meets the standards.

As well as looking in minute detail at the installation, a series of ongoing tests look at the following potential contamination's.

Bacterial contamination: The presence of adenosine triphosphate or ATP, detects microbial activity in the fuel. It's an on site test which accurately identifies any living orgasms in the fuel.  It detects as little as 1 living cell per millimetre to 85% accuracy, allowing Oil Tank Cleaning Specialists to track and predict potential risk and certify fuel as safe.

Water contamination: Tests measure free and suspended water. There is more water suspended in bio-diesel than in traditional road diesel, so higher proportions of bio content will affect outcomes.  We have a simple traffic light system for presenting results. It is important to reduce the water content in fuel to minimize the potential habitat for bacterial contamination. 

Particulate contamination: Particulates in fuel are potentially more damaging to plant and machinery than bacteria. Requirements on particulates set out under the ISO 4406 standard define the levels of contamination in a 1 millilitre fluid sample, give overall contamination an ISO rating and sale the number of particles greater than or equal to 4, 6 and 16 microns in size. 

Products & services

Fuel Sampling

Frequent sampling is crucial for maintaining fuel condition. This procedure measures fuel degradation, water content, particulate levels {Cleanliness} as well as identifying the presence of diesel bugs.

Fuel oil companies recommend a time limit of six months for storing biodiesel. Active treatment procedures should be implemented in cases where the fuel storage is for a critical backup resource such as an emergency power generation system. 

Oil Tank Cleaning Specialists offers a comprehensive service covering measurement and qualification. Testing can be carried out either at the clients premises or samples can be sent by post or courier.

We test for:

  • Bacterial contamination 
  • Water contamination
  • Particulate contamination

Test should be carried out immediately after the samples are taken since bacteria within the sample begin to die as soon as it's exposed to daylight={UV}. Samples will also be sensitive to change in ambient temperatures.

Fuel Care ATP/ Bacterial Test System

The ATP test is a process of rapidly measuring actively growing microorganisms through detection of adenosine triphosphate, or ATP. This method has been used for detecting microbial activity in a variety of fluids for many years in the medical and food production professions. Basically this procedure provides a cell count - and does so for all types of living organisms in a single test which can be carried out on the client's premises. 

An ideal solution for measuring microbial contamination, the ATP test will detect as little as one living cell per millilitre to an 85 percent accuracy, thereby allowing us to track and predict, potential risk and certify that the fuel as safe.

Products & services

Fuel Care {Water moisture test - PPM {Parts per Million}

This test measures both free water and suspended water. Typically, water in suspen-sion of biofuels has increased from around 200ppm {conventional road diesel}, to 500ppm for biodiesel. This will be higher as per the percentage of FAME increases. Clearly the bio content percentage will affect the outcome. As the levels increase, the results can also be presented by the traffic light format.


Since water is vital to support life in the bacteria {use oxygen from the water}, even if you don't have bacterial contamination it's best to remove the potential habitat.

Products & services

FUEL CARE {Particulate test (Cleanliness) ISO 4406 - 1999}

Potentially particulates within fuel can be more harmful to plant and machinery than bacterial contamination.  Some engine manufacturers have called for this to be reduced for some fuel systems. This requirement has been specified under the ISO 4406 standard.

What does this mean?

  • Defines the level of contamination present in a fluid sample (1 ml)
  • Gives the overall contamination level an ISO rating
  • Three scale numbers are used, all particles greater than or equal to 4,6 & 14 micron in size