Best Engine Oil for Audi A4 [Top Picks & Frequently Asked Questions] is reader supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you.

If you’ve landed on this page, then it’s safe to assume you’re looking for the best engine oil for your Audi A4.

As an owner of such a fine vehicle you mustn’t neglect the basic upkeep that all cars, including the Audi A4 require. This means that you need to put the right engine oil in it. Doing so will make the engine last longer, but it will also increase its performance on the road.

I’ve gone over the details of the best options when it comes to engine oil for your A4. There’s quite a few different options around, so I had to consider the fact that some are better suited for particular use-cases than others when making this list.

Some of the picks listed here provide the best protection against wear, while others are optimized for performance. Take a look at the guide, and then pick the one that’s the right fit based on your needs!

Top 7 Best Oils for the Audi A4

This list is the result of hours of research. Take a look below at the various different brands on offer, you should be able to find the right fit for you. But if you’re still unsure, there’s a guide to help you pick at the bottom.

1. Castrol EDGE 5W-30 Full Synthetic Motor Oil

Why Choose This Motor Oil?

Among all the motor oils available for the Audi A4, Castrol Edge 5W-30 ranks first in this guide.

This oil provides smooth operation by keeping the engine clean. For your Audi A4, the Castrol Edge has an ideal viscosity. Your engine will be devoid of friction and will run smoothly when you are using this motor oil.

It reaches every region of your engine much deeper than any other motor oil, improving the engine performance as well as efficiency. The engine will stay cool, and chances of the formation of deposits will be minimized. The engine wear is also improved, helping to keep your A4 performing well for longer.


• Ideal viscosity
• Advanced full synthetic motor oil
• Metal to metal contact is decreased
• HTHS (High temperature, high shear)


• Prevents deposit formation
• Fluid titanium technology
• Increase performance in all conditions


• Not the best option for high mileage A4s

2. Castrol GTX High Mileage 5W-20

Why Choose This Motor Oil?

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Limiting the engine wear to a larger extent, Castrol GTX High Mileage Motor Oil is recommended as ideal motor oil for high mileage Audi A4’s. It is a synthetic blend of high mileage motor oil that is made from crude oil. It leaves the parts of the engine four times smoother as compared to other motor oils. Castrol GTX High Mileage Motor Oil is an ideal choice for your Audi A4 Quattro as well as Audi A4 1.8T and Audi A4 2.0T.

This oil works well for gasoline and diesel engines by reaching every region and component of the engine of your vehicle, keeping it smooth and free of friction. It is geat for use in winters due to its 5w-20 viscosity and the ability to coat the parts of the engine. 1-liter and 5-liter bottles of Castrol GTX high mileage motor oil are both available in the market.


• Synthetic blend motor oil
• High mileage oil
• Available in 1-liter and 5-liter bottles
• Meets the specifications of API SN Plus, ILSAC GF-5


• Coats and lubricates every region of your engine, keeping it smooth
• Prevents friction and overheating
• Removes deposits from the engine


• Not ideal for all different temperatures

3. Valvoline 5W-20 Synthetic Motor Oil

Why Choose This Motor Oil?

The best choice to consider for extreme conditions and cold weather is Valvoline 5W-20 Gasoline Motor Oil. It is an advanced full synthetic motor oil containing premium additives. For warmer conditions, it is also an excellent option to go for.

This oil keeps the engine of your Audi A4 cool and prevents any kind of overheating by reducing friction. This motor oil focuses on providing you a clean engine, free of any deposits for a very long time.


• Advanced full synthetic motor oil
• Premium additives
• Excellent protection under extreme driving conditions and high temperature
• Meets the requirements of API SN Plus classification


• Removes sludge
• Reduces friction, keeping the engine smooth
• Better start-ups and fast oil flow in winters as well


• Not the cheapest

4. Royal Purple 51530 5W-30 Motor Oil

Why Choose This Motor Oil?

For reducing emissions, Royal Purple 51530 5W-30 Gasoline Motor Oil is considered the best pick. This is a high-performance synthetic motor oil. It resists corrosion, and for the old vehicles whose engine wears out as time is passed, it is supposed to be an excellent pick. It is high mileage motor oil.

Lubricating your engine, this motor oil lessens the friction and wear in it, making it last longer and stay in better shape. That is why after careful consideration it has been given spot number 4 on this list.


• Full synthetic motor oil
• Works well in cooler climates
• Available in various quantities
• Provides protection for high mileage engines


• Lubricates the engine efficiently
• Resistant to corrosion
• Excellent for emissions

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• Not the best value for money

5. Mobil 1 5W-30 Fully Synthetic Motor Oil

Why Choose This Motor Oil?

The accumulation of sludge is prevented by using Mobil 1 5W-30 Gasoline Motor Oil. It is an advanced full synthetic motor oil that tends to work perfectly in extreme climates and conditions. It can withstand heat up to 500 degrees Fahrenheit and protects from cold temperatures as low as -30 degrees Fahrenheit.

It lubricates the engine thoroughly, keeping all the parts running without too much friction. This factor is a crucial one when it comes to ensuring the longevity and performance of your engine.


• Fully synthetic
• Works well in any driving conditions
• Protects from high and low temperature extremes
• Reduces emissions
• Increases the durability of the engine


• Prevents the development of sludge
• Greatly increased fuel economy


• Not available in as many different quantities as other brands

6. Shell Rotella T5 15W-40 Synthetic Blend for Diesel

Why Choose This Motor Oil?

Increasing the efficiency of fuel, Shell Rotella T5 15W-40 Diesel Motor Oil comes sixth in the list of top seven best oils for Audi A4. It is a synthetic blend of heavy-duty motor oil that is specially designed for performance and longevity of the engine.

It keeps the engine clean for a long period of time by preventing the formation of deposits. Oil changing is not a huge task to perform when you are using Shell Rotella T5 15W-40 motor oil. It is one of the more expensive motor oils used for Audi A4.


• Synthetic blend
• Increased performance
• Meets requirements of major US engine manufacturers
• Advanced additive technology to combat wear and deposits
• Smoother start than ever before


• Lessens oil change frequency
• Keeps engine clean and free of sludge build up


• High cost

7. Havoline 5W-30 Petrol Blend

Why Choose This Motor Oil?

Havoline 5W-30 Petrol is said to improve the efficiency of oil and lessen the engine wear over time. It is one of the best options to consider to prevent your engine from overheating. Therefore, the engine will be able to run smoothly for longer.

The engine is said to perform efficiently in extreme weather conditions without any hassle. It is not a fully synthetic motor oil, it is a synthetic blend with a high mileage technology that has excellent resistance against oxidation. The cleansing agents present in the oil maintain the overall health of the engine.


• High mileage oil
• Synthetic blend
• Seal conditioning agents
• Packed with the deposit shield technology
• Provides resistance to oxidation
• Additional cleansing agents in the motor oil


• Reduces the noise of the engine
• Improves the efficiency
• Prevents the engine from overheating


• Oil changes are required frequently
• At higher speed, it tends to burn at a quicker rate

Audi A4 Engine Oil Buyer’s Guide and FAQs

1. How often should I do an oil change on my Audi A4?

Over time, the amount of sludge in the engine increases, and the efficiency of the engine decreases. Therefore, it is necessary to change the oil every 4000 to 10,000 miles under normal circumstances.

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If you are using the motor oil as recommended by the manufacturer, then you should change the oil every 10,000 miles or once a year. Using premium fuels can increase the intervals of oil change for your Audi A4.

Extreme driving conditions include frequent braking, shifting gear at sustained high speed, or extreme cold or hot weather. These conditions affect the engine badly, and to cope with such conditions, an oil change is recommended every 4000 to 5000 miles.

2. What is the recommended viscosity of oil for my Audi A4?

The viscosity is shown by two numbers. The first number with a “w” stands for winter. It shows the resistance of oil to thicken during winter, and the second number shows the resistance of oil for thinning at high temperatures.

So which oil viscosity is right for your Audi a4 depends to an extent on the climate conditions you will be driving in. The recommended viscosity of motor oil for an Audi A4 is often 5W-20 or 5W-30 for the overall best performance of the engine. It also depends on the year of your vehicle and the specific model.

3. Why should I go for high mileage motor oil?

If you’ve purchased your Audi A4 second hand then there’s a good chance it already has a lot of miles on it. This means that you need to be careful to make sure that you use a high mileage motor oil. Doing so will ensure that your engine has the ability to remove sludge and deposits.

If your A4 has high mileage then using an oil specifically designed for this will help make sure your car last longer without experiencing any engine issues.

4. What should I do if my Audi A4 is burning oil?

Burning oil is a normal phenomenon as long as the engine is working, it will consume the oil, and the car will burn the oil. Usually, an Audi burns a quart of oil every 600 to 700 miles.

But you really need to inspect your car by yourself if you know what you’re doing, or otherwise get it inspected by any professional mechanic if the oil burning is more than normal.


The engine in an Audi A4 is a high tech powerhouse. So obviously it requires the right engine oil that meets its exact specifications to perform optimally. If you neglect this fact, then you will lose out on power and performance. It will also shorten the lifespan of your A4’s Engine. So It’s definitely a wise decision to put the right oil in it.

Hopefully after reading through this guide you are prepared with all of the necessary knowledge to make a good choice. If you can’t decide from one of the oils on the list above, then take another look through the frequently asked questions, and the buyer’s guide to see if you can find the information needed.

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