![OptiFuel Systems' Total-Zero™ RNG-Electric Line Haul Locomotive and RNG-Powered Tender (Photo: Business Wire)](https://clone.railwayage.com/wp-content/uploads/2024/02/Screen-Shot-2024-01-12-at-10.05.22-AM-315x168.png)
OptiFuel to Begin Testing New Locomotive, Tender Prototypes
OptiFuel Systems (OptiFuel) announced Jan. 11 that it will begin testing a 5600 hp Total-Zero™ Renewable Natural Gas (RNG) Line Haul Locomotive and 2500 hp Total-Zero™ Powered Tender with 7,500 DGE (diesel gallon equivalent) capacity, in January 2025.