Can Full Synthetic Engine Oil Last for 15,000 Kilometers Before Replacement?
1 Answers
Full synthetic engine oil cannot last for 15,000 kilometers before replacement. The replacement interval for full synthetic oil is 10,000 kilometers or within one year. Methods to determine if engine oil should be replaced: 1. Repeatedly grind the extracted used oil. If impurities are felt, viscosity deteriorates, or it even feels gritty, the oil needs replacement; 2. Hold the extracted oil dipstick at a 45-degree angle under light and observe the oil droplets. If there are excessive wear particles, replacement is required; 3. Take a clean white filter paper or high-quality tissue paper, drip a few drops of oil on it, and wait for the oil to permeate. If the oil shows no powder, feels smooth, appears yellow with clear infiltration, it can still be used. If it appears dark brownish-black with impurities, replacement is necessary.