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LubAnac Gas

The LubAnac gas engine oil analysis diagnostics system for industrial piston gas engines.

LubAnac Gas is an in-depth diagnostics system. Through a simple used oil analysis, the LubAnac gives a follow-up of the behavior and depletion of the lubricant and the mechanical wear of industrial gas engines.

LubAnac Gas is recommended for:

  • Follow-up of engines operating on natural gas, landfill gas, sewage gas or liquid manure gas.
  • Determination of the optimal oil drain period.


Mechanical wear:

Wear elements Iron, Lead, Copper, Tin, Chromium, Aluminium, Nickel (ppm)

Contamination of the lubricant:

Silicon (ppm), Water (%), Cooling Liquid (ppm).
Optional: chlorine concentration, provided by landfill gas : chlorine concentration, provided by landfill gas

Characteristics of the lubricant:

Kinematic viscosity (mm2/s) at 40° C and 100° C, Viscosity Index

Base Number TBN (mg KOH/g) and Acid Number TAN (mg KOH/g)

Initial pH (IpH).

Infrared spectrometry:

  • determination of oxidation (Abs/cm at 1710 cm-1),
  • determination of nitration (Abs/cm at 1630 cm-1)


Additive elements Ca, Zn, P, Mg, Mo, Ba, V, Na, B, K, Ag


The LubAnac diagnosis and comments are established with the support of the LubAnac database. The results are also individually verified by a LubAnac technician, specialized in industrial gas engine lubrication and technology. The LubAnac Gas analysis diagnosis applies the limits indicated by every individual gas engine OEM, for wear metals as well as for oil characteristics. The LubAnac Gas expert takes into account the specific knowledge on the operating conditions of industrial gas engines and possible remarks by the user. More than 15 years’ experience in the follow-up of combustion engines running on every type of gas. Personalized responses on questions by the users are provided.


The LubAnac diagnosis report is sent per email and can also be consulted through a secured connection on the Internet. In urgent cases, LubAnac can send the report within shorter delays.