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Diesel engine oil brands

Truck & Bus engine oils
Castrol’s portfolio of high-quality diesel engine oils offers choices to help keep your fleet on the road.

 

Castrol’s diesel engine oils are formulated with excellent base oils and high-quality additives. This combination delivers outstanding performance in three key areas that affect engine oil performance: alkalinity reserve, shear stability, and oxidation stability.

  • Alkalinity reserve is the oil’s ability to neutralize acids that are formed in the crankcase during diesel combustion 
  • Shear stability maintains oil film thickness, which helps to extend engine life by protecting critical moving parts like rings, bearings, and other engine components
  • Oxidation stability minimizes oil degradation, thickening, and deposits and helps enable extended-drain performance

Advanced gear oils to help reduce levelized costs

Gearbox friction is a problem in many industries, but particularly in the energy generation sector. High loads create friction, leading to thermal stress on essential components. This propagates wear and pitting, reducing the operational efficiency of every gearbox.

 

Optigear actively adjusts to changing conditions

Castrol® Optigear is liquid engineered with MTF plastic deformation technology, with active molecules that enable it to adapt to changing conditions such as increased vibration in wind turbines.

 

This is proven to lower the coefficient of friction by up to 60% compared to standard gear oils, helping to reduce gearbox operating temperatures and actively resist wear and pitting.

 

Whether you need to reduce the levelized cost of energy or increase the efficiency of a manufacturing plant, low friction Optigear helps make it happen.

Explore Castrol Diesel Engine Oil Brands to find the
lubricant that best suits your fleet’s needs: