Why does the engine sound louder after using Mobil oil in Lavida?
2 Answers
Lavida's engine sounding louder after using Mobil oil may be due to the oil viscosity not matching the vehicle model, incomplete drainage of old oil during oil change, or prolonged intervals between oil changes. Mobil Oil Series: Mobil oil is primarily divided into three major series: Mobil 1, Mobil Super, and Mobil Delvac. Each major series is further subdivided, offering a wide variety of Mobil oil types, including fuel-efficient options and oils with extended change intervals. Car owners can choose according to their needs, and many automobile manufacturers recommend using Mobil 1 lubricants, which are already the factory-fill lubricants for many high-performance vehicles. Advantages of Mobil Oil: Mobil insists on using synthetic oil technology, with its greatest advantage being resistance to cracking and an ultra-long oil change interval, typically exceeding 10,000 kilometers. It also offers excellent kinematic performance, with high oxidation resistance and thermal stability. The base oil used has strong resistance to external variables, such as compression, oxidation, thermal stability effects, viscosity changes, and resistance.
Last month, I changed the oil in my Lavida to Mobil 1 Gold 5W-30, and suddenly the engine started roaring like a tractor. I rushed to the repair shop for a check-up, and the mechanic said it might be due to incorrect viscosity. The Lavida's 1.5L engine originally recommends 5W-40 oil, and using 30-grade oil was too thin, causing insufficient oil film thickness and increased metal friction noise. The mechanic also reminded me to check the anti-counterfeit code on the oil can seal, as there are many fake Mobil products. Finally, after switching to 5W-40 oil, the noise normalized within two days. Looking back, I should have checked the recommended viscosity parameters in the manual before changing the oil, as different engines have varying requirements for oil.
