Selecting the right engine oil for your Audi A3 is crucial for optimal performance and longevity. With so much information out there, it can be tough to know what’s best for your car. We’re here to simplify things with clear, manufacturer-approved recommendations.

Understanding Your Audi A3’s Oil Requirements

Your Audi A3’s engine is precision-made and demands specific oils to perform at its best. According to the 2018 Audi A3’s manual, Castrol Edge Professional is the way to go. However, the specific type you need—such as the oil’s viscosity—might depend on your model and the conditions you typically drive in.

Castrol Edge 0W-20 LL IV oil container

Audi A3 40 TFSI (140KW)

Your car uses Castrol Edge OW-20 LL IV

“Castrol EDGE unlocks your engine’s performance and efficiency to deliver more power with the same fuel.

The Castrol EDGE range:

  • Recommended for world-leading car manufacturers and mechanics, as well as tested on the toughest motorsport tracks
  • Demonstrates improved performance as a result of better fuel economy
  • Delivers more horsepower and greater acceleration
  • Stronger under pressure in today’s modern engines
  • Suitable for use in hybrid cars”
Screenshot of Audi manual recommending Castrol Edge Professional

Why Viscosity Matters

Viscosity is just a fancy word for the thickness of the oil and its ability to flow at different temperatures. Castrol’s recommendation for newer Audi A3 models is the Edge 0W-20 LL IV. Here’s what that means: 

  • ‘0W-20’ ensures the oil can flow quickly, even in cold weather, protecting your engine right at startup and maintaining stability at normal operating temperatures. 
  • ‘LL IV’ indicates that the oil is designed for extended life and meets specific standards set by the Volkswagen Group, which is great for keeping your Audi in top shape.

Consulting With Your Dealer or Local Garage

Your owner’s manual is a great starting point, but the best advice often comes from talking directly to your dealer or a trusted local garage. If your Audi A3 has been serviced regularly, these professionals can offer tailored advice based on a detailed record of what’s been used in your car. They’ll help you determine whether to stick with the same oil or switch to something newer based on the latest advancements in oil technology and manufacturer recommendations.

Finding the Exact Match with Castrol’s Oil Finder

To ensure you’re getting the most tailored advice for your Audi A3, using Castrol’s Car Engine Oil Finder is a smart move. This tool is designed to eliminate the guesswork by providing a specific recommendation based on your car’s registration number or model details.

How to Use the Castrol Oil Finder:

  1. Visit the Site: Go to Castrol’s Car Engine Oil Finder.
  2. Enter Your Details: You can input your car’s registration to get the most accurate suggestion or manually select your make and model if you prefer.
  3. Receive Recommendations: The tool will then display the best oil options for your Audi A3, considering all the critical factors that impact oil performance and suitability.

Why It’s Worth Checking Out

Using the Castrol Oil Finder helps you pinpoint the right oil for your car and gives you peace of mind in knowing that you’re following the best practices laid out by your car’s manufacturer. It’s an easy step that adds an extra layer of confidence before you make a purchase or head to the garage.