Should the ea111 use 5w30 or 5w40?
2 Answers
ea111 uses 5w40 engine oil. The following is the meaning of 5W40 engine oil and the precautions for refueling: Meaning of 5W40 engine oil: W stands for winter. The smaller the number in front, the better the low-temperature fluidity of the engine oil, indicating that the lower the temperature, the better the protection ability of the engine oil. 5W means that the external low-temperature resistance is -30 degrees. The number after W represents the kinematic viscosity of the engine oil at 100 degrees. The higher the value, the higher the viscosity. Precautions for refueling: Each time the engine oil is changed, the Volkswagen Tayron needs to add 5.5 liters. In addition to choosing the right engine oil, car owners should also pay attention to the oil level. The engine oil should always be within the range of the upper and lower limits of the oil dipstick. Falling below the lower limit or exceeding the upper limit will cause certain damage to the engine.
I have quite a bit of experience with the EA111 engine, having driven several cars equipped with it, and I feel that its oil selection is quite particular. Generally, the factory manual recommends oil meeting VW502 or 504 standards, with both 5W-30 and 5W-40 being viable options. For newer models like the Golf VII, 5W-30 is preferable due to its lower viscosity, which improves fuel efficiency, enables quicker starts, and reduces noise. For older cars or those driven frequently on highways in summer, 5W-40 offers better protection, preventing bearing wear caused by oil thinning at high temperatures. I previously used 5W-30 on an EA111, and cold starts were particularly smooth with slightly lower fuel consumption. However, after switching to 5W-40, engine noise during spirited driving was significantly reduced. The key is to follow the vehicle manual and avoid arbitrary changes, regularly checking oil levels and adhering to oil change intervals to prevent issues. Opt for high-quality full synthetic oil to avoid future complications, as the engine is quite delicate.
