BULWARK HERCULES HD oils are high performance, heavy duty multi-grade diesel engine oils of the latest generation. They are specifically designed to lubricate a wide range of diesel engines equipped with EGR, SCR & NOx reduction systems requiring API CI-4 or ACEA E7 performance requirements and more challenging OEM specifications.
BULWARK HERCULES HD 15W-40 is manufactured using premium hydrocracked mineral base stocks and high-performance additives to provide reliable and superior all year-round performance. It is recommended for use in naturally aspirated and turbo-charged high speed 4-stroke diesel engines without diesel particulate filters (DPF) deployed in commercial road transport and off highway applications, where standard drain interval API CI-4 oils are specified.