How Often Should Shell Fully Synthetic Oil Be Changed?
2 Answers
Shell fully synthetic engine oil should be changed every 10,000 kilometers or generally between 9 to 12 months. The specific replacement interval depends on the driving environment, especially for city driving where the vehicle often idles; in such cases, the replacement interval should be shortened. Types of Engine Oil: Generally, engine oil is categorized into 3 types: fully synthetic, semi-synthetic, and mineral oil. Replacement Intervals for Different Types of Engine Oil: Fully synthetic oil is typically changed every 10,000 kilometers or once a year. Semi-synthetic oil is usually changed every 7,500 kilometers or every 7 to 8 months. Mineral oil is generally changed every 5,000 kilometers or every 6 months.
As a daily driver, I always use Shell fully synthetic engine oil, with the oil change interval typically set at one year or 15,000 kilometers, whichever comes first. My vehicle's manual recommends this because fully synthetic oil has excellent high-temperature resistance and oxidation stability, keeping the engine lubricated and clean. Don't worry too much about changing it slightly early or late—it mainly depends on your actual driving habits. If you frequently drive short distances in congested city traffic or in high-temperature summer conditions, the oil can get contaminated more easily, so I usually check it around 10,000 kilometers. Regularly checking the oil's color and quality during maintenance is also crucial to ensure smooth vehicle operation.
