The Audi A4 is one of the best vehicles available on the market in its reasonable high-end price range. The Audi A4 comes in both petrol and diesel formats, thus choosing the best oil for your particular Audi A4 can be a tough task.

A common problem with the Audi A4 is that it burns oil at a faster pace due to damage caused in the pistons over prolonged usage.

Choosing the wrong oil type may make this problem worse in your vehicle.  However, to save you from the trouble of researching every product on the market, I have put together a comprehensive guide that will help you analyze which product would work best in your vehicle. 

8 Best Oil For Audi A4 Reviewed

All the products mentioned below have been certified by the American Petroleum Institute for their usage in gasoline vehicles.

Castrol EDGE 5W-30 Gasoline

Castrol 03084C Edge 5W-30 Advanced Full Synthetic Motor Oil

Key Details:

  • Manufacturer: Castrol
  • Model: 03084C
  • Style: Advanced Full Synthetic
  • Viscosity: 5W-30
  • Liquid Ounces: 160 Fluid Ounces

The Castrol Edge 5W-30 Advanced Full Synthetic Motor Oil is one of the most advanced products available on the market. It is a product designed to especially meet the needs of your vehicle. It perfectly meets the requirements of the Audi A4 engine and ensures great performance. It is a premium engine oil which offers a massive 10x better performance under high temperatures.

The product is also equipped with additive detergents which ensure an improved protection against sludge in the engine. It is made of extremely tough Titanium strong material which maximizes the engine performance and reduces friction in the engine. Normally, one has to pay a lot of money to get all these benefits clubbed in under one product, however Castrol has specially taken this under notice and offers a drastically reduced-price tag which is always an added benefit. It protects the engine and increases the drain intervals even under tough conditions. The Castrol EDGE is 3x stronger than the Mobil 1 for prevention of viscosity breakdown. As per the ASTM D6278 test in 5W-30 Viscosity grade.

The product meets the requirements for API SN, ILSAC GF-5, ACEA A1/B1, A5/B5, GM dexos1 and is approved by the American Petroleum Institute.


Pros
  • Great value for money
  • 10x better high temperature performance
  • Improves engine performance
  • Superior Wear Protection
Cons
  • Oil gets dirty quicker

Castrol GTX High Mileage 5W-20

Castrol - 15B6E6-6PK 06148 GTX High Mileage 5W-20 Synthetic Blend Motor Oil

Key Details:

  • Manufacturer: Castrol
  • Model: 06148
  • Style: GTX High Mileage Synthetic Blend
  • Viscosity: 5W-20
  • Liquid Ounces: 32 Fluid Ounces

The Castrol GTX High Mileage Synthetic Blend Motor Oil is another extremely reliable made by Castrol. It tackles the most common problem of vehicles – the Catalytic convertor failure which also takes a heavy toll on the wallet. It is also the #1 High Mileage Brand. The product is expertly engineered for vehicles with more than 75,000 miles. 

The product has a synthetic blend which makes it a well working oil type for your Audi A4. It also is equipped with an emission system protection. It is equipped with superior detergents which reduce and prevent deposit build up in the engine. The product despite being a synthetically blended oil, provides superior protection against burn off in the engine against other conventional oils. The package is specially manufactured to avoid spills and leaks and to provide you with an easy usage. It also increases the fuel economy.

The only common problem with the product is that it sometimes may deteriorate the piston quality in the engine.

It exceeds the requirements of ILSAC GF-6, API SP, SN PLUS, SN, SM and is certified by the American Petroleum Institute for its usage in gasoline engines


Pros
  • #1 High Mileage Brand
  • Decreases phosphorus for better performance
  • Reduces sludge and deposits
  • Designed for 75,000 miles vehicles
Cons
  • May deteriorate piston quality

Valvoline 5W-20 Gasoline

Valvoline Advanced Full Synthetic SAE 5W-20 Motor Oil

Key Details:

  • Manufacturer: Valvoline
  • Style: Advanced Full Synthetic
  • Viscosity: 5W-20
  • Liquid Ounces: 5 Quarts

Valvoline Advanced Full Synthetic 5W-20 Motor Oil is an excellent choice for the Audi A4. It not only meets all the requirements of the vehicle, but has an additional trust of the Valvoline brand which is American owned and operated for the past 150+ years. It fights all the major problems of the engine: heat, wear and deposits. It is furnished with SynPower which is the only full synthetic motor oil made with additional and robust anti-wear additives which lubricate the engine properly despite being of a thinner oil type.

The product provides unmatched cleanliness in the engine and proves for an extremely smooth operational experience. It reduces the excess and unnecessary deposits and sludge in the engine. It also provides for brilliant protection under extreme conditions and protection through rapid oil flow while starting the engine as it is equipped with superior antioxidants. The product protects the engine from the problems of LSPI at their root level. It also provides 50% more wear protection as compared to the modern industry standards. 

The only problem with the product is that it burns the oil at a faster pace than its competitors leading to more frequent oil changes. 

It meets or exceeds the API SP, SN, SN PLUS, ILSAC GF-6A requirements and is certified by the American Petroleum Institute for its usage in gasoline engines.


Pros
  • Reasonable price tag
  • Improved packaging to avoid leaks
  • Excellent performance under high temperatures
  • Reduces wear in the engine
Cons
  • Oil burns faster

Royal Purple 51530 5W-30 Gasoline

Royal Purple 51530 High Performance Motor Oil 5W-30

Key Details:

  • Manufacturer: Royal Purple
  • Style: High Performance
  • Viscosity: 5W-30
  • Liquid Ounces: 160 Fluid Ounces

The Royal Purple High Performance Motor Oil is a superior product designed by the best of engineers across the United States. The formulators of Royal Purple have more than 200 years of expertise in developing high performing lubricants to suit the needs of every customer. It focuses on developing state-of-the-art lubricants and aims to outperform all their competitors either of synthetic or conventional oils. It is formulated with Zinc/Phosphorus anti-wear compounds combined with Royal Purple’s additive technology to minimize wear and recover lost performance.

The product maximizes the horsepower of the engine and drastically increases the fuel economy. It has an improved valve protection. It is especially formulated to ensure an increased protection against the problem of LSPI which is extremely common in engines over prolonged usage. The container of the product is especially made to reduce the problems of leaks and to reduce problems in pouring of the oil.

The product also has an additional benefit of corrosion reduction in the engine and decreases deposit formulation which decreases the engine’s life.  The Royal Purple Motor Oil has extra additives which reduce the negative effects of the gases which may have an effect on the catalyst. The only problem this product has is its high price tag which may cause some people having difficulty in affording the product.

The product meets the API Service SN Plus and ILSAC GF-5 warranty requirements and is certified by the American Petroleum Institute for its usage in gasoline engines.


Pros
  • Advances wear protection
  • Improves fuel economy
  • Increase corrosion protection
  • Maximizes horsepower
Cons
  • High Price Tag

Mobil 1 5W-30 Gasoline

Mobil 1 Advanced Full Synthetic Motor Oil 5W-30

Key Details:

  • Manufacturer: Mobil 1
  • Style: Advanced Full Synthetic
  • Viscosity: 5W-30
  • Liquid Ounces: 160 Fluid Ounces

The Mobil 1 Advanced Full Synthetic Motor Oil 5W-30 protects the engine of your vehicle. It is an excellent choice for the Audi A4 engine and eliminates its major problems which develop over time. It fights off the problem of sludge in the engine and keeps the engine running like new. The Mobil 1 brand has a trust of millions of customers around the world and have been setting benchmarks in terms of oils for your beloved vehicles.

The product protects the engine from 5 of its major problems: sludge, wear, deposits, oxidation and heat. It protects the engine for oil changes every 10,000 miles. It also reduces corrosion which reduces the viscosity breakdown as well as the oil breakdowns which are common in the engines. It works well under high temperatures and also helps in reducing the problem of breakdown in all weathers. 

The product is a full synthetic model, thus providing a lot of benefits which the conventional oils fail to. It keeps the crucial engine parts protected and well lubricated which provide the vehicle with an easier driving experience.

The only major concern of the product is that it is made out of a thin plastic material which may result in damaged goods or oil spilling.

It meets the ILSAC GF-6A, API SP, SN, SN PLUS, SM, ACEA A5/B5 requirements and is certified by the American Petroleum Institute for its usage in gasoline engines.


Pros
  • Increases engine life
  • Greater wear protection
  • Works well under extreme temperatures
  • Reduces oil consumption
Cons
  • Poor packaging material

Shell Rotella T5 15W-40 Diesel

Shell Rotella T5 Synthetic Blend 15W-40 Diesel Motor Oil

Key Details:

  • Manufacturer: Shell Rotella T
  • Style: Synthetic Blend
  • Viscosity: 15W-40
  • Liquid Ounces: 128 Fluid Ounces

The Shell Rotella T5 Synthetic Blend 15W-40 Diesel Motor Oil is made with Triple Protection Plus Technology designed by the brightest of minds at the company. The Triple Protection Plus technology protects the engine from wear, deposits and oil breakdown. The engine is a heavy-duty motor oil and works well with a lot of the vehicles as well as the Audi A4. However, the viscosity of this product is far too high than recommended by the manufacturer’s guide and would not work well in the engine.

The product is synthetically blended with conventional oil and has extra low ash formulation additives to ensure a decrease in the damage caused in the exhaust of the vehicle. It helps in increasing the overall fuel economy. The product also cleans the engine ensuring a seamless driving experience along with a greater protection against wear in the engine and the unnecessary deposits and sludge which cause hindrance in the operation of the vehicle. It also boasts a 55% better deposit control than its other competitors. It improves the life of your vehicle and provides you with all the benefits of a heavy-duty engine oil.

A major disadvantage of the product is that it is synthetically blended oil thus does not have all the benefits of the full synthetic oil type. It also means the oil changes will be more frequent despite having a cheaper price tag.

It meets the API Service CK-4, CJ-4, CI-4 Plus, CI-4, CH-4 requirements.


Pros
  • Performs well under cold weather
  • Reduces poisoning of exhaust
  • Heavy duty protection
  • Decreases oil breakdowns
Cons
  • Not full synthetic oil

Havoline 5W-30 Petrol

Havoline 5W30 High Mileage Synthetic Blend

Key Details:

  • Manufacturer: Havoline
  • Style: High Mileage Synthetic Blend
  • Viscosity: 5W-30
  • Liquid Ounces: 1.25 Gallons

The Havoline 5W-30 High Mileage Synthetic Blend Motor Oil is designed with a special deposit shield which satisfies the needs of higher mileage engines. It works well in the Audi A4 engine and ensures a decent vehicle performance. The product also minimizes oil leaks via its deposit shield technology and its special seal conditioning agent. It fights off deposits and sludge in the engine which may cause a poor driving experience.

It provides an exceptional wear protection to the engine providing a longer engine life with proper care. It lubricates the crucial parts of the engine and ensures it stays in the engine longer than the conventional oil types. It cuts down the oil consumption in the vehicle leading to fewer oil changes. The product maximizes the overall fuel economy of the vehicle and has a higher protection layer to reduce the problem of corrosion. It perfectly suits the vehicle of any change and fits well into any oil change cycle. It takes care of the engine and performs well even under extreme conditions.

However, a major disadvantage of choosing this product is that it is synthetically blended, so it does not provide as good performance than some of the other names mentioned in the list. The oil changes of the same are quite frequent when compared to the full synthetic oils, even some synthetic blended ones.

It meets or exceeds the API SP/ Resource Conserving, ILSAC GF-6A requirements and is certified by the American Petroleum Institute for its usage in gasoline vehicles. 


Pros
  • Reduces oil consumption
  • Fights oxidation
  • Extremely affordable price
  • High mileage
Cons
  • Synthetic blend leads to more oil changes

AmazonBasics Full Synthetic Motor Oil – 5W-30

AmazonBasics Full Synthetic Motor Oil - 5W-30

Key Details:

  • Manufacturer: Amazon Basics
  • Style: Full Synthetic
  • Viscosity: 5W-30
  • Liquid Ounces: 160 Fluid Ounces

The Amazon Basic Full Synthetic Motor Oil 5W-30 is a premium oil product from Amazon. With a big brand name attached to it, there is not much else one has to question about it. It helps in dealing with some of the major problems your Audi A4 might face. It reduces the engine noise which is caused by excessive wear and tear. It is recommended to check the details of the vehicle and what details suit it the best.

The product helps in reducing the buildup of unnecessary materials which may result in rusting and corrosion. It reduces friction which prevents excessive wear of the engine. It is also equipped with special features that provide a higher resistance to viscosity and thermal breakdown and is formulated with advanced technology to provide a higher level of engine protection even under extreme operating conditions.

The only downside of the product is that it causes the problem of faster oil burning.

The product meets the API SN PLUS, SN, SM, or SL and ILSAC GF-5 or GF-4 industry standards.


Pros
  • Increases drain intervals
  • Reduces corrosion
  • Maximizes engine performance
  • Performs well under extreme conditions
Cons
  • Faster Oil burning

Oil Buying Guide For Audi A4

Before purchasing any product for your Audi A4, you need to understand some crucial aspects to make an informed decision.

The Viscosity

The viscosity of the engine is one if not the most important factor for determining which oil type will suit your vehicle. The oil can be either thick or thin. A thinner oil type means more free flowing oil and it results in easier start up during cold weathers. A thicker oil type on the other hand lubricates the critical engine parts better and stays in the engine longer. The Audi A4 works best with either a 5W-30 or a 0W-30 oil. However, the 5W-20 or the 0W-20 can also keep the engine healthy. The determining factor will be the circumstances under which the vehicle is operated in.

Oil Type

The Audi A4 is an extremely demanding engine oil therefore providing it the wrong engine oil type might deteriorate the performance of the vehicle. The recommended oil type in the Audi A4 is the Full Synthetic oil. Despite being an expensive product, it ensures better performance. The synthetic blend or the conventional oils can also be used as an alternative if the full synthetic oil isn’t available.

Performance of the Engine

The performance of the engine is determined by a number of factors. It can be a deciding factor for people who are in two minds between some certain products. The thinner oil will work well under extremely cold conditions and the thicker one will ensure that your vehicle doesn’t suffer from oil or viscosity breakdown under pressure.

Extra Features

If still there are a number of products that work well with the Audi A4, then the additional features of the product will help you make a call. For instance, if your vehicle suffers from a problem of oil leaks frequently, then choosing a product that especially prevents that problem will be the way to go.  

Frequently Asked Questions

Yes. Similar types of engine oils can be mixed together; however, they will only deteriorate the quality of the performance and the extra additives of both might not even work well and give you any benefit at all.

There is a common problem in the Audi of oil burning, but it can be treated provided that one uses the correct type of oil.

An Audi A4 recommends the Full Synthetic engine oil.

An Audi A4 recommends the Full Synthetic engine oil.

 The oil viscosity of an Audi A4 is 5W-30 or 0W-30.

The Mobil 1 is one of the best brands available for the Audi A4. However, if one cannot afford it, Castrol serves as a good alternative.

The Verdict

The Audi A4 is an extremely premium quality engine and uses the Full Synthetic 0W-30/5W-30 motor oils. However, there can be exceptions in terms of the viscosity or changing the full synthetic oil to synthetic blend or conventional oil but will result in reduced engine performance and frequent oil changes over lower distances.

The Mobil 1 Advanced Full Synthetic 5W-30 Motor Oil would work best. However, if your vehicle has developed a certain type of problem which causes it to not be suitable to the Mobil 1 High Mileage 5W-30 Motor Oil, or you are not able to afford the Mobil 1 brand, the next best alternative would be either the Castrol Edge 5W-30 Advanced Full Synthetic or the Valvoline Advanced Full Synthetic 5W-20 Motor Oil. All of these models would work well in the engine and provide you with an excellent driving experience. Ultimately, the decision depends upon the user and what they are looking for from their vehicle. 

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