Top 10 things to look for in your landfill gas oil sample

Landfill gas presents a unique set of challenges for engines. This means that early detection of issues such as premature engine wear, coolant leaks and lubricant contamination is necessary for continued and reliable operation. Used oil analysis can help to expose these issues before they result in costly downtime or expensive repairs.

Here are the top 10 things to look out for in an oil sample:

1. Viscosity

Changes in viscosity – both higher and lower – can result in premature wear


3. Oxidation

Oxidation by-products can increase wear, corrosion and viscosity and tend to form deposits.


5. Total Base Number (TBN)

A drop in TBN could indicate rapid acidity increase coming either from oil oxidation or from acidic gas compounds or both


7. Nitration

Signals that the air-fuel ratio is not lean enough


9. Particle Quantifier (PQ) Index

Measures ferrous metal contamination, which can cause bearing wear and piston scuffing


2. Water

Can cause severe corrosion, wear, poor oil film thickness and bearing failure


4. Total Acid Number (TAN)

A high TAN can indicate increased oil acidity caused by oxidation and its side- effects as described above


6. Coolant

Indicates a leak of coolant and associated metals (Sodium, Potassium)


8. Chlorine

Indicates a leak of coolant and associated metals (Sodium, Potassium)


10. Metals

Presence can indicate component wear or oil contamination, depending on metal.


In order to get the most from used oil analysis it is important to map data and trends over time. If changes are detected, look for potential triggers. Issues can interact, accelerating potential damage. At ExxonMobil we can work side by side with you to do this.

With Mobil Serv℠ Lubricant Analysis, our experienced and knowledgeable engineers utilise patented processes, to ensure that you can have peace of mind.

By identifying potential issues before they become problems gas engine operators can reduce costs and maintain productivity. Potential benefits include:

  • Improved equipment reliability
  • Increased productivity/reduction of unscheduled downtime
  • Reduced parts replacement and labour costs
  • Optimised drain interval/reduced lubricant consumption and disposal
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We at ExxonMobil are continually improving and upgrading our Mobil Serv™ Lubricnat Analysis (MSLA) service. We offer an extensive range of industrial technical services – all designed to help our customers optimize their lubrication programs and machine availability.

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