What Type of Oil Is Recommended for an Audi A6?

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Audi recommends that customers use synthetic oil with a Society of Automotive Engineers viscosity grade of 5W-40 for normal driving across regular temperature ranges. Customers may substitute SAE 5W-30 or 0W-40 viscosity oil if 5W-40 is not available. These oils are appropriate for all Audi engines, whether gasoline or diesel.

Additionally, Audi vehicles must use oil that conforms to their VW 502 00 specifications for gasoline engines, or VW 507 00 specification for diesel engines. These specifications include oils made by manufacturers such as Castrol, Mobil, Pennzoil, Shell and Valvoline. Some motor oils specify on the container that they adhere to Audi standards. Alternatively, customers can contact their Audi dealerships or visit the Audi website to find lists of specifically approved oils.