OEM Quality Vauxhall Insignia 2.0 CDTi Service Kit. DEXOS 2 is the correct spec for this 2.0 CDTi engine. Using the wrong spec could cause engine issues, poor running, and blocked dpf issues. Low levels of sulphated ash, phosphorus and sulphur make Optima C3 LSG 5W-30 compatible with diesel particulate filters.
