Should engine oil be changed before reaching the recommended mileage?
1 Answers
Engine oil replacement should be based on either time or mileage, with maintenance typically recommended based on whichever comes first. Changing oil based on mileage is sufficient, as in practical use, most people don't track time but only monitor the odometer without encountering any negative issues. The recommended mileage intervals for different oil grades are as follows: 1. Mineral oil, which degrades the fastest, is recommended to be changed every 5,000 kilometers. 2. Semi-synthetic oil, with various additives, degrades slightly slower and is recommended for up to 7,500 kilometers. 3. Full synthetic oil performs the best and maintains optimal performance the longest before rapid degradation, with an average recommendation of 10,000 kilometers.