EURO ULTRA is a fully synthetic high performance, ultra-low SAPS passenger car engine oil for use in diesel and some petrol fuelled cars that specifically call for an ACEA C1 or DL-1 rated oil such as some Mazda, Ford, Mitsubishi and Citroen diesels fitted with Diesel Particulate Filters (DPF_s). EURO ULTRA is a high quality formulation will maximise DPF life, maximises fuel economy and helps extend drain intervals. Note: EURO ULTRA should only be used where it is specifically recommended by Gulf Western Oil or where an ACEA C1 specifications is called for. EURO ULTRA is a highly specialised formulation that may not be suitable for many modern passenger cars that do not call for an ACEA C1 rated oil. Not suitable for use where an ACEA C3 or C4 specification is recommended.