Hercules SAE 50

Mineral Diesel Engine Oil

BULWARK HERCULES series oils are superior mono-grade mineral diesel engine oils specially designed to lubricate a wide range of 4-stroke naturally aspirated diesel engines requiring API CF-4 or lower performance requirements usually older fleet of light, medium and heavy-duty commercial vehicles.


BULWARK HERCULES SAE 50 is manufactured using superior paraffinic mineral base oils and high-performance additives to provide excellent anti-oxidation, anti-wear properties and reliable all year-round performance. Recommended for use in diesel engines which are widely used on road transport and off-road equipment, where mono grade lubricants are required.

Performance Level

  • API CF-4, CF-2, CF

Key benefits

  • High anti-oxidation and dispersant properties 


  • Reduced oil consumption, wear and noise level (in older high mileage and worn engines) during  severe operation conditions. 


  • Excellent protection against wear & corrosion.


  • Higher viscosity base oils help maintain oil pressure at all driving conditions.