What Kind of Oil a 4.2 Audi S5 Takes

The 4.2-liter V8 Audi S5 is designed to run on fully synthetic engine oil that meets the VW 502 00 specification, with the most commonly recommended viscosity being 5W-40, and in some climates 5W-30, provided it still carries the correct VW approval. Below is a detailed look at what this means, why it matters, and how to choose the right oil for your specific car and driving conditions.

The Official Oil Specification for the 4.2 Audi S5

Audi, like other German manufacturers, uses technical specifications rather than only viscosity ratings to define what oil is acceptable. For the naturally aspirated 4.2 FSI V8 used in the B8 Audi S5 (model years roughly 2008–2012, depending on market), the key requirement is that the oil meets the VW 502 00 standard.

Core Requirement: VW 502 00

The VW 502 00 specification is the governing standard for gasoline engines like the 4.2 S5’s V8. This spec focuses on high-temperature stability, resistance to sludge and deposits, and protection under performance driving – all crucial for a high-revving V8.

The main characteristics of oils meeting VW 502 00 include:

• They are fully synthetic (or at least very high-quality synthetic blends, though almost all modern 502 00 oils are full synthetic).
• They are tested specifically for VW/Audi engine wear, deposit control, and oxidation resistance.
• They are suitable for extended drain intervals when used in conjunction with Audi’s service schedules (though older/high-mileage cars often benefit from shorter intervals).

In practice, this means you should not just pick any 5W-40 or 5W-30 off the shelf, but one that explicitly lists “VW 502 00” on the label or in the product’s technical data sheet. This ensures that the oil has been formulated and tested for the requirements of Audi’s 4.2 FSI V8.

Recommended Viscosity Grades

Once the VW specification is confirmed, viscosity is the next important factor. For the 4.2 S5, 5W-40 is typically the default recommendation, with some flexibility depending on climate and driving style.

Most Common Choice: 5W-40 Full Synthetic

5W-40 full synthetic oil is widely recommended for the 4.2 S5 because it offers a strong balance of cold-start protection and high-temperature stability, which is important for spirited driving and highway cruising at higher RPM.

Typical benefits of 5W-40 for the 4.2 V8 include:

• Good flow in colder starts (the “5W” part) for reduced wear during initial startup.
• Thicker protection at operating temperatures (the “40” part), helping to protect internal components under load.
• Better resistance to thinning at high temperatures compared with many 5W-30 formulations, which can be advantageous for older or hard-driven V8s.

For many owners in moderate to warm climates, a VW 502 00-approved 5W-40 is the safest and most commonly recommended choice, especially as these engines age and tolerances open slightly.

Alternative in Some Conditions: 5W-30 (Still VW 502 00)

In colder climates or where fuel economy is a priority, some Audi documentation and many oil manufacturers list 5W-30 oils that are approved under VW 502 00 as acceptable for the 4.2 S5.

When 5W-30 can make sense:

• Regions with very cold winters, where easier cold cranking and quicker oil circulation are beneficial.
• Drivers who prioritize fuel economy and smoother cold-start behavior over maximum high-temp thickness.
• Engines in very good condition, with no unusual oil consumption or noise, where a slightly thinner oil at operating temperature is acceptable.

The crucial caveat is that the 5W-30 oil must still show “VW 502 00” approval or better. Without that, it should not be used, regardless of viscosity alone.

Common Brands and Example Products

Multiple reputable oil manufacturers produce VW 502 00-approved oils suitable for the 4.2 S5. Product availability varies by region, so it’s wise to verify locally which exact formulations you can purchase.

Well-Regarded Oils for a 4.2 Audi S5 (Check Current Labeling)

The following are typical examples of oils that often carry VW 502 00 approval and are frequently used by owners of V8 Audis. Always confirm the current label or data sheet, as formulations and approvals can change.

Examples of commonly used VW 502 00 oils include:

• Castrol EDGE 5W-40 (or Castrol EDGE 0W-40 where specified) – Many versions are VW 502 00 approved; often marketed for European performance cars.
• Mobil 1 FS 0W-40 (formerly “European Car Formula”) – Frequently carries VW 502 00/505 00 approvals; widely available in North America and Europe.
• Liqui Moly Leichtlauf High Tech 5W-40 – Popular among Audi/VW owners; designed for European specs and often listed with VW 502 00 approval.
• Motul 8100 X-cess 5W-40 – High-performance synthetic oil commonly used in German performance cars; generally VW 502 00 compliant.
• Shell Helix Ultra 5W-40 (Pennzoil Platinum Euro 5W-40 in some markets) – Often carries VW 502 00 approvals and good deposit control characteristics.

Because labels and approvals can change over time, the best practice is to look directly at the bottle or the manufacturer’s official specification sheet to verify that “VW 502 00” is explicitly listed before purchase.

Oil Capacity and Change Intervals

Choosing the correct oil type is only part of the equation; using the right amount and changing it at sensible intervals is equally important for a performance V8 like the 4.2.

Approximate Oil Capacity

The 4.2 FSI V8 in the B8 Audi S5 typically takes around 8.8–9.0 liters (approximately 9.3–9.5 US quarts) of oil with a filter change. Exact capacity can vary slightly, so checking the owner’s manual or verified technical data for your specific model year is advisable.

Key points around capacity and filling:

• Do not rely solely on the initial fill amount; always check the dipstick or electronic oil level after the engine has run and the car is parked on level ground.
• Add oil gradually once you approach the expected capacity to avoid overfilling.
• If the vehicle uses an electronic oil level display, follow Audi’s recommended procedure for checking oil level after a change.

This careful approach helps ensure the engine is properly lubricated without being overfilled, which can cause aeration or other issues.

Recommended Change Intervals

When new, Audi often specified extended intervals (up to 10,000 miles / 15,000 km) for vehicles using approved synthetic oils. However, many owners and independent specialists now recommend shorter intervals for older performance engines like the 4.2 S5’s V8.

Typical real-world practices include:

• Changing oil every 5,000–7,500 miles (8,000–12,000 km), especially for higher-mileage engines or spirited driving.
• Shorter intervals (around 5,000 miles / 8,000 km) for cars used frequently in city traffic, short trips, or track use.
• Always replacing the oil filter with a quality OEM or OEM-equivalent part at every oil change.

These more conservative intervals help manage sludge risk, protect timing components, and support long-term reliability, especially as the engine ages.

Special Considerations for Older or High-Mileage 4.2 S5s

Many 4.2 S5s on the road today are well beyond their original warranty period and may have significant mileage, which can slightly change the ideal oil strategy.

Monitoring Consumption and Condition

The 4.2 FSI V8 can consume some oil, particularly as it ages. Using the right spec oil and monitoring levels between changes is crucial.

Practical checks for older engines include:

• Checking the oil level regularly (for example, every 1,000 miles or 1,500 km) and topping up only with the same VW 502 00-approved oil.
• Watching for blue smoke, excessive consumption, or contamination (fuel smell, metallic particles), which could signal deeper issues.
• Considering a slightly higher-viscosity 5W-40 rather than a thinner 5W-30 for engines with noticeable consumption or noise, provided it still meets VW 502 00.

These steps help you catch potential problems early and tailor your oil choice to how your specific engine behaves over time.

How to Verify the Right Oil for Your Specific S5

Although the general guidance is consistent across the 4.2 S5 range, verifying specifics for your model year and market is always prudent.

Documentation and Dealer Guidance

The safest way to confirm the correct oil is to cross-check multiple trusted sources for your exact car.

Useful ways to confirm the correct oil include:

• Consulting the owner’s manual or service booklet for your exact model year and engine code.
• Calling an Audi dealer or specialist independent shop, providing your VIN, and asking for the recommended oil spec and viscosity.
• Checking reputable oil manufacturers’ online “oil finder” tools, inputting your vehicle details to see which VW 502 00 oils they recommend.

By combining official guidance with manufacturer tools, you can be confident that the oil you choose is correct for your particular 4.2 Audi S5 and its operating environment.

Summary

The 4.2-liter Audi S5 V8 is engineered to run on fully synthetic engine oil that meets the VW 502 00 specification, with 5W-40 being the most widely recommended viscosity and 5W-30 also acceptable in some climates when it carries the same VW approval. Reputable options from brands such as Castrol, Mobil 1, Liqui Moly, Motul, and Shell/Pennzoil all offer VW 502 00 oils suitable for this engine. With an oil capacity of roughly 8.8–9.0 liters (about 9+ quarts) and real-world change intervals often set between 5,000 and 7,500 miles, using the correct spec oil and maintaining sensible service intervals are key to preserving the performance and longevity of the 4.2 S5’s high-revving V8.

What kind of oil does a 4.2 L Audi S5 take?

Audi S5 Coupe 4.2L V8 Engine Oil – Castrol Edge Euro Car A3/B4 – 5W-40 Synthetic (5 Quart)

What oil does an Audi S5 take?

The recommended oil for an Audi S5 depends on the model year, but generally requires a full synthetic oil. Newer models (e.g., 2018+) typically require 0W-20 oil that meets the specific VW 508 00 standard, while older supercharged models (e.g., 2010-2017) may call for 5W-40 oil meeting the VW 502 00 standard. Always check your owner’s manual for the exact specification for your vehicle.
 
Newer models (e.g., 2018+)

• Viscosity: 0W-20
• Specification: Must meet the Audi/Volkswagen oil quality standard, such as VW 508 00.
• Note: This is a common requirement for the 3.0L turbo engines in newer S5s. 

Older models (e.g., 2010-2017)

• Viscosity: 5W-40
• Specification: Must meet the Audi/Volkswagen oil quality standard, such as VW 502 00. 

General guidelines

• Use full synthetic: It is highly recommended to use full synthetic oil for both older and newer models to ensure proper lubrication and engine protection. 
• Consult your owner’s manual: The owner’s manual is the definitive source for the correct oil type, viscosity, and specification for your specific vehicle. 
• Consider your climate: If the recommended synthetic oil is unavailable, use a different viscosity that is suitable for your climate and operating conditions, as long as it meets the Audi/Volkswagen quality standard. 

How much oil does a 4.2 Audi V8 take?

8.1 quarts (with filter).

How much oil does a 2009 Audi S5 4.2 take?

9.3 quarts (with filter).