Dyna-Plex 21C Corvus 20W-40 (55 Gal. Drum)
Dyna-Plex 21C Corvus is a specially formulated, zinc free railroad engine oil formulated to meet fuel and emissions standards in late model EMD and GE engines. It provides outstanding protection for turbo charger bearings and silver wrist pins while reducing ash content and enhancing oxidation. Dyna-Plex 21C Corvus 20W-40 is recommended for railroad, marine and stationary engines.