NEW publication in Energy Conversion and Management

In this research by Dan Vrtiška, Miloš contributed by providing a detailed GC×GC characterisation of all used-oil samples to understand the complex speciation of the gasoline fraction in used oil and confirm the link between oil dilution and the presence of heavy aromatics (C10+) in ETG.

This study evaluates oil dilution and changes in oil properties through driving tests using four Ethanol-to-Gasoline (ETG) fuels with varying compositions. Commercial (Super 95) and alkylate-based gasolines were used as benchmarks. Tests included cold‑start short‑distance, cold‑start real driving emissions procedure, and mixed cold–warm high‑load driving. Comprehensive oil analysis revealed a strong link between oil dilution and the presence of heavy (C10+) aromatics in ETG fuels. Modified ETG contained ∼75% less C11+ aromatics, resulting in lower oil dilution than the standard one, but still about double that of commercial gasoline.

Feel free to read this open-access work: https://www.sciencedirect.com/science/article/pii/S0196890426007181