Lubricating Oil Analysis and Condition Monitoring in Saudi Arabia

Understand oil condition. Detect signs of wear. Make better maintenance decisions.

Environmental Testing and Laboratories Company (ETLCO) provides lubricating oil analysis to help industrial facilities, fleet operators, power plants, and maintenance teams assess lubricant condition and monitor equipment health.

Our Oil & Gas Laboratory evaluates the physical and chemical properties of new and in-service lubricants, helping clients identify contamination, monitor degradation, and investigate wear-related concerns.

From engine oils to turbine, hydraulic, gear, and compressor oils, we tailor testing programs to the lubricant, equipment, operating conditions, and maintenance objectives.

Why Analyze Lubricating Oil?

Lubricating oil carries information about both its own condition and the equipment it serves. Changes in viscosity, contamination, wear debris, or additive condition can provide early indications of developing problems.

Lubricating oil analysis helps you:

• Assess whether oil remains suitable for continued service.

• Identify water, particles, and other contamination.

• Monitor wear-related indicators and investigate abnormal trends.

• Evaluate lubricant degradation and changes in selected additives.

• Support oil change decisions based on condition and equipment requirements.

• Check new lubricants against purchasing specifications.

• Prioritize inspections and maintenance activities.

Results are most useful when compared with a new-oil baseline, previous samples, operating hours, and equipment manufacturer guidance.

New Lubricating Oil Testing

Verify Quality Before Use

ETLCO supports the assessment of new lubricants before they enter service. Testing can help confirm selected product properties, check batch consistency, and establish baseline data for future condition monitoring.

A testing scope may include viscosity, density, water content, elemental composition, acidity or alkalinity, and other properties relevant to the lubricant specification.

Used Oil Analysis

Monitor the Lubricant and the Equipment Together

In-service oil analysis helps maintenance teams evaluate how a lubricant changes during operation and whether contamination or wear indicators require attention.

Routine sampling and consistent test methods make it easier to distinguish normal changes from unusual trends. Findings can support further inspection, filtration, contamination control, or oil replacement decisions.

Our Lubricating Oil Testing Capabilities

The testing program is selected according to the lubricant type and application. Not every test is appropriate for every oil.

Kinematic Viscosity

Viscosity testing measures resistance to flow at a specified temperature. Comparing results with the oil’s original properties can help identify changes associated with degradation, contamination, or mixing with another lubricant.

FTIR Spectroscopy

Fourier-transform infrared spectroscopy supports the assessment of lubricant chemistry and changes during service. Depending on the oil and method, it can help monitor oxidation, selected contaminants, and other condition indicators.

Comparison with a suitable reference oil improves the value of the assessment.

Wear Metals and Additive Elements by ICP-OES

Spectrochemical analysis using inductively coupled plasma optical emission spectrometry (ICP-OES) measures selected elements associated with wear, contamination, and lubricant additives.

Results help identify trends requiring investigation. Elemental analysis complements ferrous debris and particle testing because no single technique detects all wear particles equally.

Ferrous Debris Analysis

Ferrous debris testing helps assess the presence of iron-containing wear material in oil. It provides additional information for investigating wear trends when considered alongside elemental analysis and equipment history.

Particle Count

Particle counting evaluates oil cleanliness by measuring particles within specified size ranges. It is particularly useful for monitoring contamination in systems where cleanliness affects component reliability.

Water Content

Water analysis helps identify moisture contamination that may affect lubrication, corrosion protection, and oil condition. Results support investigations into possible ingress sources and the need for corrective action.

Total Acid Number — TAN

Total acid number measures acidic constituents in the lubricant. Tracking changes against a baseline helps assess oil deterioration, with interpretation dependent on the lubricant formulation and application.

Total Base Number — TBN

Total base number assesses alkaline reserve, particularly in engine oils formulated to neutralize acidic products. Trending TBN supports oil condition assessment alongside other test results and operating information.

Oxidation Stability

Oxidation stability testing evaluates the lubricant’s resistance to oxidation under specified test conditions. It supports product evaluation and condition assessment where the method is appropriate.

Antioxidant Assessment by RULER

Linear sweep voltammetry, commonly known as RULER testing, assesses selected antioxidant additives in applicable lubricants. Comparison with a suitable new-oil reference helps evaluate remaining antioxidant levels.

Membrane Patch Colorimetry — MPC

MPC testing assesses the colour intensity of material collected on a membrane patch. It can support the investigation of varnish-related concerns in suitable lubricating oils, particularly as part of a broader condition monitoring program.

Air Release and Foaming Characteristics

Air release testing evaluates how readily an oil releases entrained air, while foaming tests assess foam tendency and stability under specified conditions.

These properties are relevant to lubricant performance in circulating systems.

Demulsibility and Water Separability

These tests assess the ability of an oil to separate from water under defined conditions. They help evaluate lubricants used in systems where water contamination may occur.

Rust Prevention

Rust prevention testing evaluates the oil’s ability to protect ferrous surfaces under specified conditions. It supports assessment against relevant lubricant performance requirements.

Pentane Insolubles

Pentane insolubles testing measures material that does not dissolve under the test conditions. It can support the assessment of contamination and degradation-related material in applicable used oils.

Additional Physical and Chemical Properties

Depending on the lubricant and agreed specification, additional testing may include:

• Density.

• Aniline point.

• Flash and fire points.

• Pour point.

• Cloud point, where applicable.

• Other product-specific properties following technical review.

Oil Analysis for Your Equipment

Engine Oils

Monitor lubricant condition, wear indicators, contamination, and alkaline reserve to support maintenance decisions for engines and operating fleets.

Turbine and Circulating Oils

Assess properties relevant to oxidation, antioxidant condition, water separation, air release, cleanliness, and varnish-related concerns.

Hydraulic Oils

Evaluate viscosity, water content, and particulate contamination to support the reliability of hydraulic systems and sensitive components.

Gear and Compressor Oils

Monitor lubricant condition and wear-related indicators, with testing selected for the equipment design and operating environment.