What does ACEA mean for engine oil?
2 Answers
ACEA in engine oil stands for the abbreviation of the European Automobile Manufacturers' Association. The specific introduction of engine oil is as follows: 1. Lubricity: Under various conditions, the ability of engine oil to reduce friction, slow down wear, and prevent metal sintering is called the lubricity of engine oil. The viscosity of engine oil is an important indicator for evaluating lubricity. 2. Low-temperature operability: The performance of engine oil to ensure easy starting and reliable fuel supply under low-temperature conditions is called the low-temperature operability of engine oil. 3. Functions: Alleviate friction and high temperature; reduce gas leakage and prevent external pollutants; buffer the pressure rise in the engine cylinder port.
I paid special attention to the ACEA rating on engine oil, which is a certification system established by the European Automobile Manufacturers' Association. Simply put, labels like A5/B5 indicate that the oil has passed the rigorous testing standards of European car manufacturers, particularly in terms of protecting European car engines. For example, my Volkswagen Golf requires A3/B4 grade oil, and the high-temperature shear resistance must meet the standard. For newer cars like Mercedes-Benz and BMW, it's even more important to use C-series low-ash oil to prevent particulate filter clogging. Compared to the American API standard, ACEA has stricter requirements for cleanliness and longevity, so it's recommended that car owners choose the corresponding rating as specified in the manual. Don't underestimate this certification—using the wrong oil can lead to oil burning or reduced power.
