求翻译：5. 安装后行驶2500公里左右，由于引擎积碳的清除，强烈建议此时更换机油和油格，更换机油是提高节油率非常重要的步骤。是什么意思？

5 travel 2500 km or so after the installation, removal of carbon as the engine is strongly recommended at this time replacement of oil and oil cell, oil changes is to increase the saving rate is very important step.

After you install 2500 traveling . * 5 km around the engine, as a result of carbon sinks, it is strongly recommended that you change the oil and oil, the replacement of fuel oil is a very important step rate.

5. After the installment goes about 2500 kilometers, as a result of the engine carbon deposition elimination, suggested intensely this time replaces the machine oil and the oil standard, the replacement machine oil enhances the rate of economizing petrol extremely important step.

5. after installation about 2,500 km, as engine accumulated carbon clear, we strongly recommend that at this time replacing the engine oil and oil, oil change is to improve the fuel-saving rate is very important step.

5. after installation about 2,500 km, as engine accumulated carbon clear, we strongly recommend that at this time replacing the engine oil and oil, oil change is to improve the fuel-saving rate is very important step.