RX DIESEL 15W-40 CI-4/E7

Castrol RX Diesel 15W-40 CI-4/E7 is a multi-purpose, heavy duty diesel engine oil. It is suitable for use in high speed 4-stroke diesel engines that use a broad range of fuel qualities. It is also compatible with diesel engines fitted with exhaust gas recirculation (EGR) systems.


  • Contains cleaning agents which displace particles that may otherwise build up on your engine surfaces reducing deposits.
  • Contains anti-oxidants which disrupt the chemical reactions that can lead to oil thickening.
  • Provides effective piston deposit control and maintains its viscosity to encourage long and healthy engine life.


  • ACEA E7
  • API CI-4/SL
  • CAT ECF-2
  • Cummins CES 20077, CES 20078
  • DDC Powerguard 93K215
  • Deutz DQC III-10
  • Mack EO-M Plus, EO-N
  • MB-Approval 228.3
  • MTU Oil Category 2
  • RVI RLD-2
  • Volvo VDS 3
  • Meets requirements of MAN M3275