Bardahl Classic Oil SAE 15W50 semi-synthetic engine oil. This oil meets the strict pifor petrol engines (even with LPG systems), with or without turbocharger/compressor. Suitable for engines after 1970. Service api SL/CF specifications. Bardahl Classic Oil SAE 15W50 is a semi-synthetic engine oil, designed for lubrication of diesel and gasoline engines with and without turbo. Synthetic base oil increases resistance to aging and cutting. In addition, the additive package is formulated to protect the engine in any extreme situation at any room temperature. Bardahl Classic Oil SAE 15W50 is composed da high-quality mineral and synthetic base oils to which a modern additive package is added. This formula provides optimal protection against wear, oxidation, dilution and the formation of morchias (Black-Sludge). Rigorous tests have shown that this oil is suitable to reduce pollution in the engine and can be used 365 days a year. This engine oil saves fuel and is safe for catalytic converters.