Do SCR and CEGR systems require a specific oil?
With an SCR system there is no change in the oil used moreover, there is also no need to use costly diesel additives as the system can run on standard diesel, independent of fuel quality. In a CEGR system, a low ash lube oil is required for the DPF; oil changes may need to be more frequent or larger engine sumps may be required due to the higher levels of PM in the engine.