Improved oil measurement for better hydrogen engines
Improved oil measurement for better hydrogen engines

Performance Analysis of New Deuterium Tracer for Online Oil Consumption Measurements
Key Highlights:
- H₂-ICEs are a promising alternative to fossil-fueled engines – but they come with new technical challenges.
- In these engines, the lubricating oil is the main source of CO₂ emissions – making accurate measurement essential.
- The newly improved deuterium tracer method enables precise, online measurement of oil consumption with minimal system interference.
- This method allows researchers to investigate oil-related combustion effects in greater detail.
- Next steps: validation of the method and comparison of oil performance with and without the tracer.
Why it matters: Accurate oil consumption measurement is crucial for evaluating and improving the environmental impact of hydrogen engines.
This new tracer technique marks a major step forward toward cleaner propulsion systems.
Read the full Open Access article published in Lubricants, 13(8), August 2025:
Publications – Large Engines Competence Center LEC | Large Engines Competence Center
Congratulations to the authors:
Marzemin Francesco, Vareka Martin, Gschiel Kevin, Rossegger Bernhard, Grabner Peter, Engelmayer Michael, Wermuth Nicole
Many thanks to everyone involved for this excellent contribution to engine research!