Oscar TPEO 4050


Oscar Trunk Piston Engine Oils is a range of trunk piston engine oils developed for use in medium speed diesel engines burning residual fuels. This oil combines an exclusive formulation of latest additive technologies, and a highly refined base oil to provide a substantial safety margin to cope with the higher stress levels even with the latest and future designs of diesel engines.



  • Excellent thermal resistance and high temperature oxidation resistance.
  • Very good detergent and dispersant properties at high temperatures.
  • Good wear protection and oil film strength at extreme pressures
  • Excellent water resistance.
  • Reduced build up heavy deposits in the engine leading to a reduction in maintenance costs.
  • Very good neutralizing capability of acidic products of combustion.



  • Turbocharged main and auxiliary engines of all types and all ratings running on
  • Intermediate Fuel oil or on Heavy Fuel oil with high Sulphur content.
  • Bearings and stern-tubes.
  • Reduction gear lubrication.