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The main Volkswagen Group vehicle brands (VW, Audi, Skoda, Seat, and Cupra) usually require the use of specific oils approved by the German manufacturer itself. However, it is not the only automotive group that uses different specifications to lubricate its engines.
For any average user, these oil specifications can seem complex and difficult to understand. In this article, we aim to break down and clarify the meaning of the various Volkswagen Group oil specifications, providing a guide to help owners of these vehicles choose the most appropriate and optimal oil for their cars, thereby ensuring the best performance and care of the engine.
What exactly is a specification? What does it mean when we talk about engine oil?
When a manufacturer designs an engine, the company subjects it to grueling tests to guarantee its longevity and proper operation. After many trials, they conclude what physical properties products such as oil or coolant must have for the engine to operate in optimal conditions.
A “specification” is what the product that meets these characteristics is called. A specific oil connects its physical and chemical properties with those requirements previously set by the car manufacturer.
It sounds simple, right? Well, it is not so simple. Neither car manufacturers nor lubricant producers detail all the relevant properties in their technical data sheets. It is a more complex game.
Car manufacturers establish a series of requirements and tests that an oil must meet. Petroleum companies test their products to see if they meet those requirements. If they do, they mark their products with that specification. This indicates that the oil is suitable for cars that require those characteristics. Basically, specifications work as keys to finding the correct oil for each car. By choosing an oil based on its specification, we ensure that it is the ideal one for our model. Hence why it is so important not to stray from the standard when we are going to change the oil in a VAG Group car or any other that recommends specific oils.
How are Volkswagen Group oils classified and compared? What SAE do they equate to?
Volkswagen has 11 different types of specifications for its motor oils in use. Several originated in the 1990s and others more recently, after the year 2000.
Some of these specifications are appropriate for gasoline vehicles and others for those that run on diesel. In addition, they vary according to oil change intervals; some of these oils are designed to be changed more regularly. Others are “Longlife”, meaning they can be changed with more space in time.
This implies that not all specifications require the same level of oil quality. There are high and low quality standards, and knowing how to select the right one is key if you are looking for an oil that excels in multiple aspects.
| Property | VW 500.00 | VW 501.01 | VW 502.00 | VW 503.00 | VW 503.01 | VW 504.00 | VW 505.00 | VW 505.01 | VW 506.00 | VW 506.01 | VW 507.00 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Blend smoothness | + | + | + | + | + | ++ | + | ++ | + | + | ++ |
| Wear | + | + | + | +++ | ++ | +++ | + | ++ | +++ | +++ | +++ |
| Sludge | ++ | ++ | ++ | ++ | ++ | +++ | ++ | ++ | ++ | ++ | +++ |
| Piston deposits | + | + | ++ | +++ | +++ | +++ | + | ++ | +++ | +++ | +++ |
| Oxidative thickening | + | + | +++ | +++ | +++ | +++ | – | ++ | ++ | ++ | +++ |
| Fuel economy | – | – | – | ++ | ++ | ++ | – | – | ++ | ++ | ++ |
| Aftertreatment compatibility | – | – | – | – | – | ++ | – | – | – | – | ++ |
| Typical viscosity (SAE equivalence) | All | All | 0W-30 0W-40 5W-30 5W-40 10W-30 10W-40 |
0W-30 | 0W-30 0W-40 5W-30 5W-40 |
5W-30 | All | 5W-30 5W-40 |
0W-30 | 0W-30 | 5W-30 |
Note: more ‘+‘ signs always mean that the oil performs better in that segment. For example, +++ in the Sludge category means that less sludge forms in the oil, not more.
As we were saying, there are oils within Volkswagen’s specifications designed for regular service, and there are also oils designed for longer changes, the LongLife ones. The standard interval can be used in any vehicle, but choosing the extended interval requires two requirements:
- An engine that is approved for extended change intervals.
- That the oil has the specification to be used as a long-life oil.
Most Volkswagen Group vehicles produced after the year 2000 offer the extended change interval option:
- For gasoline engines, this equates to 30,000 kilometers or a maximum limit of 2 years.
- In the case of diesel engines, the intervals can be 30,000, 35,000, or 50,000 kilometers, also with a maximum of 2 years.
Although these numbers may come as a surprise to many people who usually do their changes every 10,000 or 15,000 kilometers, it is worth remembering that the development of engine oils has advanced significantly over all this time and these figures are quite common in the current market.
Cars that are compatible with the extended change service also feature a series of sensors and electronics that can suggest an early oil change if operating conditions are not ideal, such as in the case of many cold start issues being recorded. Therefore, there is no need to be afraid of these lubricants.
What determines whether a car uses one specification or another?
Even if your car is from the Volkswagen Group (VW, Seat, Audi, Skoda…), you cannot use just any specification without checking. However, the exact same engine can use multiple oils with different specifications depending on the activity to be performed.
When it comes to selecting an appropriate specification, there are several key aspects to consider. The most crucial thing is to determine exactly what the vehicle manufacturer specifies. That mystery we talked about earlier and reflected in the table.
As we mentioned a few lines ago, not all specifications are the same. It is vital to consult your vehicle’s manual to know what specifications it supports. So, what should I do if I don’t have the manual? What if the manufacturer gives me multiple options? Well, these are the most important factors to keep in mind when choosing a specification:
- Gasoline vs. Diesel. Diesel engines generate more heat and demand more from the oil, requiring a more robust oil. In addition, the oil must be compatible with specific systems of diesel cars.
- Standard vs. LongLife. Do you need an oil with a longer service life? Many Volkswagen Group vehicles allow for longer oil change intervals if you choose a higher quality oil. Therefore, you will often need a different oil if you want this option. Obviously, we are talking about a much more expensive oil.
- Unit injector vs. Common Rail. TDI engines that run on unit injectors (Pumpe-Düse or PD) use different specific oils than modern TDI engines, which are Common Rail.
- Particulate filter? Don’t get the specification wrong. If your diesel VAG (TDI) has a particulate filter, you must use the oil indicated by the manufacturer no matter what. Specifically, you need a low-SAPS one. If you use another, you will damage the particulate filter (DPF), and it is a rather expensive part to replace.
- Special engines. Finally, performance engines used in the most luxurious Volkswagen Group cars also need complex oils, such as Audi’s V10, for example.
Visual Guide: How to identify my car’s VW oil
Following the steps from the previous point, here is a diagram to guide you on the type of oil your car should use:
