Lubricating Oil Consumption Measurement on Large Gas Engines

Bernhard Rossegger*, Albrecht Leis, Martin Vareka, Michael Engelmayer, Andreas Wimmer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Increasing the reliability of combustion engines while further reducing emissions and life cycle costs are the main drivers for optimizing lubricating oil consumption (LOC). However, in order to reduce the lube oil consumption of an engine, it is crucial to measure it accurately. Therefore, a LOC measurement device based on the use of the stable isotope deuterium has been developed. Previous publications have focused on the use of passenger car engines. This publication describes the first application of this newly developed method on a large gas engine. This is of particular interest as large-bore engines might show different oil consumption behavior, much higher LOC in gram per hour and the bigger oil reservoir need larger amounts of tracer. Additionally, a different type of fuel has an effect on oil consumption measurement as well, as presented in this paper. The results showed this method can be applied to large gas engines as well after conducting minor changes to the measurement setup. However, other than liquid fuels, the origin and isotopic composition of the natural gas has to be monitored. Ideally, gas from large storage is used for carrying out these measurements.

Original languageEnglish
Article number40
Number of pages14
Issue number3
Publication statusPublished - Mar 2022


  • Deuterium
  • IR spectroscopy
  • Lubrication
  • Oil consumption
  • Tracer

ASJC Scopus subject areas

  • Mechanical Engineering
  • Surfaces, Coatings and Films


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