Improve the diesel rail still in service.
Where electrification is incomplete, NTROPYX addresses the remaining fuel burn in locomotives, shunters and service fleets.
Diesel rail is a smaller market than road, but each locomotive runs hard for years. NTROPYX focuses the buyer on fuel, soot, EGR cleanliness and overhaul economics.

Where electrification is incomplete, NTROPYX addresses the remaining fuel burn in locomotives, shunters and service fleets.
The message stays practical: depot fuel, long duty cycles, heavy load and no traction-system redesign.
Cleaner combustion gives rail buyers a clearer link between fuel quality, maintenance drag and operating uptime.
Immediate message: fuel efficiency, cleaner combustion, lower waste and a commercial path sized to the sector.
European rail is 79% electric. The remaining 21% — 42 329 TJ burned by diesel locomotives and shunters in 2023 (Eurostat) — is the residual hydrocarbon scope: ~1.18 Bn L. Cleaner combustion compounds maintenance gains on engines that run thousands of hours a year.
Derivation: Eurostat [nrg_bal_c] series FC_TRA_RAIL_E / siec O4671XR5220B = 42 329 TJ EU27. Converted at diesel LHV 36 MJ/L → 1.18 Bn L.
FC_TRA_RAIL_E × O4671XR5220B (Gas oil & diesel, rail transport final consumption) × TJ × 2023. Diesel conversion: LHV 36 MJ/L. Switzerland excluded (~100% electrified rail network). — 2024 & 2025 not yet published in harmonised form by Eurostat; latest complete sectoral breakdown is 2023.