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Learn Oil Analysis

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Secrets of OCM

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Welcome to the definitive resource on all things oil analysis. Take a look around the site and register for free to get full access to the learn oil analysis book series.

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Latest & Popular Articles

See the latest and most popular articles on oil analysis that have been posted to find out more about how oil analysis works and the benefits it could be doing for you.

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This article will answer the following questions:


Why do compressors fail or not work?


Is my oil or coolant contaminated with water?


Why is my compressor running hot?


When should I change my compressor oil?


When does my desiccant need changing?

Industrial air compressors are used all over the world for many different uses ranging from filling up tyres and gas cylinders to powering pneumatic tools to large industrial manufacturing processes to delivering air required in manuf...
Your compressor is failing and you don't even know it
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This article will answer the following questions?


How do I know if my fuel is of a good quality?


Why do I need to test my diesel fuel?


What does BS EN590 mean when I see it written on fuel pumps?


How can a laboratory confirm if fuel is of a good quality or become contaminated or adulterated?


What effect does biodiesel have on my vehicle?


Why misfueling is a serious problem and can potentially impact a warranty claim?

The EN590 Specification is the legal specification for...
What is the EN590 specification for diesel fuel?
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This article will answer the following questions:


Why is my hydraulic oil or fuel turning black?


Why are air handling properties of an oil important for good lubricant health.


Is my hydraulic pump cavitating?


I have recently switched oil types and now my oil has turned black - why is this?


How does air cause my oil or fuel to turn black?Air entrainment can be a major issue in your lube oil. Not only is air a poor lubricant so can lead to increased wear, it can also lead to your...
What is microdieseling & why does it turn my oil / fuel black?
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This article answers the following questions:


How to reduce machinery downtime?



How to reduce machine repair costs?


How to reduce lubricant oil and grease consumption?


How to improve machinery reliability?

How big is the impact of wear on a business?

With such a list of questions above to answer you would imagine this article would be very detailed but in fact it can be summed up in two words "Oil" and "Analysis". I personally live and breathe oil analys...
Why oil analysis matters - it saves you loads of cash and avoids shed tears
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word image 44 Learn used oil analysis sample testing, lubrication reliability maintenance, predictive lab diagnostics to reduce costs & boost profits.
Water In Oil – the problem

Water is a very poor lubricant and the fact it does not mix easily with oil means it causes double the problem by removing the stuff that is. The density of water means it will drop to the bottom of bearings or loaded surfaces, the exact place the best Lubrication is needed. Water with air also promotes corrosion (rust) within the system. In addition, high temperatures environments and high loading water will boil off at the mating surfaces, leading to a temporary l...
Water in Oil - How to Prevent & how to remove water from lube oil.
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This article will answer the following questions:


How do I identify the cause of a machine failure?


Why do bearings fail?


How do I prevent loss of production / increase asset utilisation?


This was an interesting sample I came across recently, I thought I would make into a case study. The bearing on a conveyor line in a food production factory failed suddenly causing a whole production process to go down. The bearing was sent to the manufacturer and the grease was sent t...
Case study: failed greased bearing cost £100k by not sampling. Don't make the same mistake and have regular oil & grease analysis
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An interesting case I had recently where I was asked to do a bit of independent consultancy after 5 small cable laying vessels suddenly started experiencing engine problems. I came into this half way through as a neutral party for the bunker fuel storage owners, the vessel owners and the fuel suppliers. It had already been established the issue seemed to have arrisen after the vessels had each filled up at the same place, but the confusion was that many other vessels had used the same location a...
Learn oil analysis and the the case of the contaminated fuel
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Why Oil Analysis Matters?

Oil Analysis is used by people just like you all over the world to reduce machinery downtime and improve equipment reliability. A small sample of oil from your machinery can provide as much information as a full machine strip down at a fraction of the cost and has been a proven technology for over 60 years to reduce forced shutdowns and failure repair costs. Want to understand how oil and grease analysis works and how it applies to you then watch this short video below.

How Much Can Oil Analysis Save Me?

Oil analysis is a brilliant tool that can save you money each time you sample. The returns on investment vary depending on your machinery type, so feel free to use our sister sites cost saving calculator at the bottom of their FAQ Page.

Read the Book

By registering for free to our quarterly newsletter and logging in you can read the industry leading textbook series on oil analysis “Learn Oil Analysis”

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Ask a question

Ask a question on oil analysis directly to the site author. This can also include requests on how and with whom to start fluid sampling. You can also contact the author on linkedin.

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See our Training Courses

Register for free and get access to some of our great short oil analysis training training courses. Content is updated regularly and includes explanation of tests, sources of wear, how to take a sample and the benefits of oil Sampling. You can also book a dedicated training day for you and your team too or enquire about our deluxe online training programmes.

Welcome to Learn Oil Analysis

Training Videos

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Get your oil tested

img 3041 Learn used oil analysis sample testing, lubrication reliability maintenance, predictive lab diagnostics to reduce costs & boost profits.If you have never had your oil tested before then what are you waiting for and get in contact with a lab today. There are many reputable labs all across the world that offer excellent oil analysis services you can use including our sister lab – Oil Analysis Laboratories, which is the only lab in the world to offer the LubeWear test. LubeWear identifies abnormal wear far earlier than traditional wear metal analysis techniques meaning you can catch faults earlier to keep your machine reliability at its highest. A brief video explanation of the rest can be viewed below.