Syner-D 5w-40 Fully Synthetic - Ultimate Protection - Maximum Performance Suitable for high performance diesel engines - including turbo charged. Ultimate protection in all conditions - extremes of heat and cold. Fully synthetic to help keep engine clean and prolong engine life. Helps reduce emissions. Service Classification: ACEA A3 B3 B4 API CF Meets requirements of: MB 229.3, VW 505.00, BMW Longlife 98