Most Audi S4 models typically take a fully synthetic 5W-40 motor oil that meets VW Group specifications; however, the exact grade and approval depend on the model year and engine variant. Always check your owner's manual or the under-hood labeling for the precise requirement.
Oil basics for the Audi S4
For most modern S4s powered by the 3.0-liter TFSI engine (and similar high-performance engines in the lineup), the recommended grade is a high-quality fully synthetic 5W-40 oil. The oil should carry a Volkswagen Group approval appropriate for gasoline engines and comply with Audi's technical specifications. Some older or alternative S4 engines may use 5W-30, 0W-40, or other grades; always confirm by year and engine code.
Key variants that affect oil choice
Oil requirements can vary between generations and engine configurations, so the exact specification may differ from year to year. When in doubt, reference the official documentation for your car's VIN.
Below are the typical guidelines you’ll encounter when selecting oil for an Audi S4. Use this as a reference, but verify against the official specification for your vehicle.
- Default recommendation for most current S4 models (3.0 TFSI in B8/B9): fully synthetic 5W-40 oil with Volkswagen Group approval for gasoline engines.
- Some climates or older engine variants may require either 0W-40 or 5W-30 synthetic oil; climate, service interval, and engine code influence the exact grade.
- Always choose a product that carries the VW 502 00 (or the current VW/Audi approval list) and meets ACEA requirements compatible with your engine.
Following these general guidelines helps you avoid oil compatibility issues and maintain engine performance and warranty coverage.
How to verify the exact oil for your car
Because the Audi S4 spans multiple generations and engine options, the definitive oil specification is found in the owner's manual and on under-hood labels. If you don’t have the manual handy, use these steps to confirm the correct oil for your vehicle.
- Check the owner's manual or the service booklet for the exact grade (for example 5W-40) and the VW/Audi approval list required by your engine.
- Inspect the engine oil cap or a label under the hood for a specification code (these often list the required oil standard or grade).
- If you still can’t determine it, contact an authorized Audi dealer or a shop experienced with VW Group vehicles and provide your VIN to pull the exact specification.
- Choose a high-quality synthetic oil from a reputable brand that explicitly states it meets the listed VW/Audi approvals and is suitable for high-performance engines.
Verifying the exact requirement for your S4 ensures you use the correct oil grade and approvals, preserving performance and warranty terms.
Summary
In practice, Audi S4s commonly use a fully synthetic 5W-40 oil that carries VW Group approvals for gasoline engines, with some years allowing 0W-40 or 5W-30 depending on climate and engine variant. Always verify with the owner's manual or dealer to confirm the precise specification for your car, and choose a reputable brand that meets the VW/Audi approvals. Regular oil changes with the correct grade help maintain engine performance and longevity.