A heavy duty truck manual transmission fluid formulated to deliver outstanding protection against gear wear and all-weather, year-round performance. Allows easy shifting in extremely cold weather. Proven extended drain capabilities. 
 
Chevron Delo® Syn-Trans HD is recommended for service fill of heavy duty manual transmissions, such as those manufactured by Eaton, Meritor, and Mack.
This product is not recommended for use as an engine crankcase oil.