First Maintenance: Fully Synthetic or Semi-Synthetic?

[OCameron]

First Maintenance: Fully Synthetic or Semi-Synthetic? The choice between fully synthetic or semi-synthetic oil for the first maintenance can be decided based on personal needs. The specific details are as follows: 1. Based on engine displacement: For a 1.5L engine, use fully synthetic oil for the first maintenance, then switch to semi-synthetic oil. Using semi-synthetic oil is not good for the engine as it can cause increased engine wear and noise. 2. Based on usage: If you frequently drive at high speeds (above 160 km/h), with high RPMs and frequent vehicle use, it's best to use fully synthetic oil, which is heat-resistant and does not degrade. Information about the first maintenance is as follows: 1. First maintenance: It is the first mandatory maintenance after the new car leaves the factory. In China, except for imported models, domestic and joint-venture models generally offer free first maintenance. 2. First maintenance time: Different brands and models may have different requirements, but most require the first maintenance to be done within 3,000 to 5,000 kilometers or three to six months. When choosing the time and mileage for the first maintenance, try not to exceed the recommended limits.