What is the best engine oil for Audi?
1 Answers
Audi uses fully synthetic engine oil, preferably 5W40 or better 0W40 oil, which is less prone to solidification at low temperatures. W stands for WINTER, and the number before W represents the flow performance at low temperatures. The smaller the number, the better the starting performance at low temperatures. The number after W represents the stability of the oil at high temperatures (i.e., the likelihood of thinning). The larger the number, the better the stability of the oil at high temperatures. Since engine oil has a significant impact on the performance and lifespan of the engine, it is essential to strictly follow the vehicle's user manual to select the same series, usage grade, and viscosity grade of oil. The engine oil recommended in the vehicle manual is based on the engine's performance and the temperature conditions of the sales region. It provides certain guidance for oil selection, with a considerable safety margin, and is also one of the prerequisites for warranty claims during the engine's warranty period. Functions of engine oil: Shock absorption and buffering: When the pressure in the engine cylinder rises sharply, it suddenly increases the load on the piston, piston pin, connecting rod, and crankshaft bearings. This load is transmitted and lubricated through the bearings, cushioning the impact load. Lubrication: There is rapid relative sliding between the piston and cylinder, as well as between the main shaft and bearing shells. To prevent excessive wear of parts, an oil film needs to be established between the two sliding surfaces. A sufficiently thick oil film separates the surfaces of the relatively sliding parts, thereby reducing wear.
