Owning a performance sedan like the 2018 Audi S4 is a true pleasure, blending everyday comfort with exhilarating power. That turbocharged 3.0-liter V6 engine is a masterpiece of engineering, and like any finely tuned instrument, it requires the right care to perform its best for years to come. At the heart of this maintenance is a simple yet critical task: the oil change. Using the correct lubricant isn’t just a suggestion; it’s a necessity for protecting your investment and ensuring that thrilling drive remains smooth and responsive.
This guide is designed to take the guesswork out of your next service. Whether you’re a seasoned DIY enthusiast or an owner who just wants to be informed when talking to a mechanic, having the right information is power. We’ve compiled everything you need to know about the 2018 Audi S4 oil type and capacity, creating a clear and practical resource you can rely on.
Your 2018 Audi S4 Oil Type And Capacity Guide
Let’s get straight to the numbers. For the 2018 Audi S4 and its 3.0L TFSI V6 engine, the official oil specification is SAE 5W-40. Audi strongly recommends using oil that meets the VW 502 00 approval standard. This isn’t just a viscosity grade; it’s a performance specification that ensures the oil can handle the high temperatures and stresses of a turbocharged engine.
As for capacity, the system holds approximately 6.6 quarts (or 6.2 liters) of oil during a standard change with a new filter. It’s important to note that this is an approximate figure. The most accurate way to check the level is always by using the electronic oil-level sensor in your vehicle’s MMI system after the oil has had a moment to settle.
Why the Right Oil Matters for Your S4
You might wonder why such a specific oil is required. The 5W-40 viscosity is a multi-grade oil, meaning it performs well in both cold starts and high-operating temperatures. The “5W” indicates its flow characteristics in winter (cold) conditions, allowing it to circulate quickly to protect engine components upon startup. The “40” refers to its thickness at high temperatures, ensuring it maintains a protective film on critical parts like the turbocharger bearings and cylinder walls even under hard driving.
The VW 502 00 approval is your guarantee that the oil has been tested and proven to work with Audi’s engineering requirements. It ensures the oil provides superior protection against sludge, deposit formation, and oxidation. Using an oil that doesn’t meet this standard can lead to reduced performance, lower fuel economy, and in severe cases, premature engine wear or damage. Sticking with the recommended oil is a simple way to preserve the health and power of your engine.
A Step-by-Step Guide to Checking Your Oil Level
Unlike many cars, the 2018 S4 does not have a traditional dipstick. Instead, it uses a sophisticated electronic sensor. Here’s how to get an accurate reading:
- Ensure your car is on a level surface and the engine is at normal operating temperature.
- Turn off the engine and wait a few minutes for the oil to drain back into the pan.
- With the ignition off, press the “CAR” function button on your MMI console.
- Select “Servicing and checks” and then “Oil level.”
- The system will take a moment to measure and then display the oil level.
The display will show you if the level is within the acceptable range. It’s a good habit to check this every couple of weeks or before a long trip to stay ahead of any potential issues.
Choosing the Best Oil for Your Driving Style
While any major brand synthetic oil that meets the VW 502 00 standard is suitable, your choice can be refined based on how you drive. For daily commuting and normal use, a high-quality synthetic like Mobil 1 ESP 5W-40 or Castrol EDGE 5W-40 is an excellent choice.
If you frequently push your S4 on track days, spirited canyon drives, or in very hot climates, you might consider a step up. Some owners opt for oils like Liqui Moly Leichtlauf High Tech 5W-40, which is known for its robust additive package and exceptional high-temperature stability. The key is to never compromise on the VW 502 00 approval, regardless of the brand.
Helpful Tips for a Successful Oil Change
If you’re planning to change the oil yourself, a few tips can make the process smoother. Always use a genuine Audi oil filter to ensure a perfect fit and correct filtration. When adding new oil, start with about 6 quarts, then check the level electronically. Add the remaining oil in small increments, checking the level after each addition, until you reach the full mark. Overfilling can be just as harmful as underfilling, as it can cause foaming and increased pressure on engine seals.
Finally, remember to reset your service indicator through the MMI system under the “Servicing and checks” menu to keep your maintenance schedule accurate.
Keeping Your S4’s Heart Healthy
Caring for your 2018 Audi S4 doesn’t have to be complicated. By sticking to the recommended 5W-40 oil with VW 502 00 approval and adhering to the 6.6-quart capacity, you are providing your engine with the best possible protection. Regular checks and timely changes are small investments that pay massive dividends in performance, reliability, and the pure joy of driving a car that’s in peak condition. Your S4 deserves nothing less.