API SN Plus, 0W-20 | Car

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For reliable, safe and low-wear operation, the right lubricants and operating fluids are essential for a car, be it a passenger car or commercial vehicle. Lubricants and operating materials are mainly classified as liquids, such as oils and coolants, as well as more solid substances such as greases. The wear protection and performance development of a vehicle are subject to several different properties of these substances. An essential function of oil or grease is obvious: the lubrication of vehicle components such as engine, transmission, steering and chassis. This contributes to achieving the desired performance and protects the vehicle from wear and tear. Another, but equally important, function quickly fades into the background: cooling the components. Especially in the engine and transmission, the cooling function of the oil is existential, alongside the coolant in the vehicle's water circuit! Operating fluids such as brake fluid or hydraulic fluids play a key role in the safety of a vehicle. These are also exposed to high thermal and physical loads, which is why consistent performance is important. ATO24 is your competent partner from refilling the engine oil to the complete engine, coolant or transmission oil change. In the ATO24 online shop you can get high quality engine oils and transmission oils for automatic transmissions, manual transmissions, as well as differential and transfer cases in a large selection of over 30 brands at reasonable prices. In addition, our product portfolio offers power steering, hydraulic and brake fluids according to various specifications for purchase, in order to have the right fuel for every vehicle. ATO24 is specialized in offering suitable lubricants for almost every car.  With a wide range of products of well-known lubricant manufacturers and OEM products of various car manufacturers, our product range is specialized in oils, greases and other operating fluids for European cars, especially for American cars, US-Cars and passenger cars of Asian brands. A large selection of additives with cleaning, protective or performance-enhancing effects at favourable prices completes the range of products.

Buy now the right 0W-20 oil at the top price!

The ATO24 online store offers oils, coolants, greases and other lubricants. At www.ato24.de you will find a wide selection of 0W20 engine oils. We will help you find exactly the right 0W-20 oil for your vehicle!

The ATO24 service team is at your side to help you choose the right engine oil. Simply contact our consultants using the options provided and quickly get competent help.

The viscosity 0W-20 is one of the low viscosity engine oil viscosities. For many vehicles a 0W-20 engine oil is prescribed or recommended by the manufacturer for use. We explain what the 0W-20 viscosity actually means and how you can choose the right 0W20 engine oil.

What does 0W-20 mean?

SAE 0W-20 is a multi-grade viscosity. The two viscosity indices 0W and 20 initially indicate the possibility of year-round use (for winter and summer use). The cold viscosity 0W indicates the flowability of the oil at low temperatures. A 0W engine oil can therefore be considered to be very free-flowing when cold. This is particularly beneficial to the engine during cold starts, as the oil is able to spread particularly quickly.

The warm viscosity 20 indicates the flowability of the oil at high temperatures (specification refers to temperature of 100°C).

What is the difference between 0W-20 and 0W-30?

This also explains the difference between the various viscosity grades. 0W-20 and 0W-30 engine oils have comparable flow properties when cold. A 0W-20 engine oil has a lower viscosity at operating temperature than the 0W-30 engine oil. It is therefore "thinner."

Engine oil 0W20: You should pay attention to this!

Your vehicle manual should always be the first place to go to find the right engine oil for your car. If you find the information that SAE 0W-20 is to be used, you are almost done. Because not all 0W20 engine oils are the same!

When buying a 0W-20 you have to pay attention to the prescribed specification and approval. They are representative of the correct ingredients and standards set by your vehicle manufacturer.

0W-20 Engine Oil Specifications

After the correct viscosity, you should check whether a specification is also prescribed for the correct engine oil for your car. You will also find a reference to this in the manual of your vehicle.

Specifications are issued, for example, by the institutions ACEA, API, ILSAC or JASO. In the following you will find a selection of specifications that are often prescribed together with the viscosity 0W20:

• ACEA A1/B1 0W-20 Engine Oil
• ACEA C5 0W-20 Engine Oil
• API SN 0W-20 Engine Oil
• ILSAC GF-5 0W-20 Engine Oil

0W-20 Engine Oil Approvals

In addition to the specifications, the manufacturer's approvals or manufacturer's recommendations play an important role in the selection of engine oil.

Manufacturer's approvals are issued and updated by the vehicle manufacturers in order to adapt them to the requirements of the respective engine generations. On the following pages, you will find oils that receive the specified approvals or are recommended by the manufacturer of the oil for the corresponding use:

• BMW Longlife-17 FE 0W-20 Engine Oil
• Chrysler MS-6395 0W-20 Engine Oil
• Mercedes-Benz MB 229.71 0W-20 Engine Oil
• Volkswagen VW 509 00 0W-20 Engine Oil

API SN Plus Oil vs. LSPI

"Smaller" (downsized) engines with turbochargers and direct injection are widely used nowadays. After all, they make it possible to reduce CO2 emissions. At first glance, this sounds very good, but it has one drawback - the problem of Low Speed Pre-Ignition, or LSPI for short.

LSPI describes the combustion of the fuel-air mixture in the combustion chamber of an engine that takes place before the actual combustion initiated by ignition sparks. This can lead to excessive pressure in the cylinder and, in the worst case, cause serious damage to the engine.

Low Speed Pre-Ignition presents the automotive industry with a major dilemma - on the one hand, they want to meet the ever-growing demand for fuel-efficient vehicles, but on the other hand, the engines specially designed for this purpose are susceptible to LSPI.

What to do against LSPI?

Research on LSPI shows that, among other things, the formulation of the engine oil plays an important role in solving the LSPI problem. For this reason, calls from the automotive industry for engine oils that can counteract the problem of LSPI have been growing.

Now, the American Petroleum Institute (API) has responded to these demands with the API SN Plus specification.

What does API SN Plus mean?

Strictly speaking, the API SN Plus specification is not a completely new engine oil specification, but an addition to the existing API SN and ILSAC GF-5 specifications. API SN Plus has been valid since May 2018 and was developed specifically for "downsized" engines with exhaust gas turbochargers and direct injection systems, which require an engine oil with the API SN specification, in order to counteract the problem of Low Speed Pre-Ignition (LSPI) and to protect vehicles or the engines from LSPI.

As mentioned earlier, API SN + is the most current specification of the API classifications created by the American Petroleum Institute. The API classifications distinguish between gasoline and diesel classifications, which are identified either by the letter "S" for Service or Spark Ignition for gasoline engines and by the letter "C" for Commercial or Compression Ignition for diesel engines. This is followed by another letter that reflects the quality level - the higher the letter, the more demanding the test for the oil.

What is the difference between API SN and API SN Plus?

API SN + essentially corresponds to the API SN specification, but is supplemented by an additional test against LSPI (API Sequence IX Test). This can be seen very well in the following graphic: API SN is marked with the yellow line, while API SN Plus is marked with the red line. The values that must be achieved in the individual tests or sequences in order to obtain the API SN license are identical to the values that are required for the API SN Plus license. As a result, the two lines are mostly on top of each other, which makes the line orange. The only difference between the two specifications is the test against LSPI (API Seq. IX), which only applies to API SN Plus.

API SN Plus is backwards compatible with API SN, which means that engines that require an engine oil with the API SN specification can also use an engine oil with the API SN Plus specification.

API SN+ for which cars?

All cars that have a small (downsized) engine with turbocharger and direct injection technology have a higher LSPI risk. To a large extent, downsized engines are engines with three cylinders and a total displacement between 1.0 to 1.5 L.

If an engine of this type requires an engine oil with the specification API SN, then it is recommended to resort to an engine oil with the specification API SN +, due to the backward compatibility with API SN, in order to prevent potential low speed pre-ignition and protect the engine from LSPI. The vehicle owner's manual can be used to determine if an engine oil with the API SN specification is needed.

API SN Plus and GM dexos

API SN Plus, along with the GM dexos 1 Gen. 2 release, is the first step in the fight against LSPI. At the end of 2019 / beginning of 2020, the ILSAC GF-6 specification is expected to put even more focus on protection against LSPI.