Oil Analysis and Testing

OCLS provides professional oil analysis and diesel fuel solutions. Supports Pro-active maintenance programmes by personalising the condition monitoring services for front line engineers.


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What We Offer

  • Engine oil and fuel analysis
  • Diesel fuel filtration
  • Oil Condition Monitoring Programmes!
  • Diesel fuel testing and lubricant issues?

Common Equipment We Test

  • Diesel engine oil analysis
  • Transmissions
  • Gearbox oil testing
  • Final drives
  • Industrial gearboxes analysis
  • Compressors
  • Blowers
  • Fans
  • Electric Motors
  • Pump testing
  • Turbines
  • Chillers
  • Cooling systems
  • Diesel Fuel Systems
  • Greased Bearing
  • Hydraulics testing

Engine oil analysis and diesel fuel solutions

A full range of oil analysis and testing methods are available for all kinds of industries and equipment including but not limited to, Mining equipment, Road & Rail transport, Construction equipment and Marine vessels.

OCLS, also provide fuel solutions, Tank cleaning,Tank repairs. Filtration equipment  from static units for large tanks, to mobile units for use in the field. Oil analysis kits and fluid conditioning products for any oil condition monitoring or predictive maintenance solutions.

Renewable Energy Support

Wind Turbines both on and Offshore

Offshore support vessels themselves as part of a cost reduction program.

Steam & Gas Turbine Support

As part of the support for GT & ST's,Varnish potential is monitored using ASTM D7843

Oil Condition Monitoring Programmes!

Used oil analysis is by far the most cost effective method of condition monitoring your equipment. It will assist with warranty issues and is an essential part of root cause failure analysis.

Closely monitoring your engines with an OCLS programme will provide fast and precise information on your machines condition. A scheduled analysis of engine oils, greases or hydraulic fluids can provide evidence on the level of wear or the detection of defect parts before major downtime and costly failures happen.

Read the benefits of our used oil analysis Condition Monitoring Programmes Alternatively, feel free to contact OCLS where we will happily advise you on your lubrication and engineering-related issues. 

Diesel fuel testing and lubricant issues?

For those experienced in oil analysis, we have a full suite of fuel and oil tests and oil analysis kits for individual needs, large or small.

OCLS give you more than a simple analysis service - you buy into an arrangement that includes consultation and Full support.



Why Choose Us

OCLS are a modern lubricant analysis and diesel fuel testing laboratory, based in South Yorkshire, Doncaster. We are proud of our independent status and are staffed by experienced technicians, who can be relied upon for unbiased and an informative prognosis of all oils, diesel fuels and lubricants.

The lab operates to both ISO9001:2000 and BS EN ISO14001:2004 standards and meets all manufacturer,warranty/maintenance requirements.


I have been using OCLS for 2 ½ years, the service is very professional and friendly, there have been a number of times when I have had rush samples that need testing; OCLS have been there every time. OCLS would be my first choice every time. Chris Shepard — MECHANICAL TECHNICAN

Read more testimonials...

OCLS analysis report key

What to expect in our analysis reports