What does "SAPS" stand for and what is the significance for German and European auto warranty requirements? If you own one of these higher performing autos you might find this very interesting.
In this modern era of increasing differentiation it is important to understand why AMSOIL carries three different European oils. And why are two of them 5W-40? What’s the difference?
The European Automobile Manufacturers’ Association (ACEA) helps establish motor oil standards in the European market. ACEA recognizes that European engines differ from U.S. engines in both design and operating conditions. As a result, the demands on motor oil are different as well.The differentiator between various makes and models of European cars has to do with the acceptable levels of sulfated ash, phosphorus and sulfur (SAPS) in the motor oil.
Sulfated ash is the by-product of metallic compounds as they are burned. It can improve an oil’s antioxidancy, anti-wear properties, Total Base Number (TBN), corrosion resistance, engine cleanliness properties and soot-handling ability.
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Sulfur provides antioxidancy, anti-wear and engine cleanliness properties.
SAPS makes up a significant portion of a motor oil’s additive content. Some emissions systems and aftertreatment devices, such as diesel particulate filters (DPFs) and catalysts, are sensitive to the SAPS content of oil and require lower-SAPS formulations to properly function for a long period of time.
So, how does an owner know which oil to use in their car? Check your owner's manual and use the chart below to match the correct oil with the proper specification your auto manufacturer listed in the owner's manual.
| AMSOIL EFM 5W-40 Full SAPS |
AMSOIL AFL 5W-40 Mid SAPS |
AMSOIL AEL 5W-30 Low SAPS |
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