My 2017 Honda City, a manual transmission, produces a peculiar noise around 60 mph, especially when there's low power, mainly in 4th and 5th gears. When the car regains power, the noise subsides. It resembles a grinding or heavy air sound, which is incredibly bothersome. Can anyone help me diagnose the issue? I initially considered changing the gear oil, but after consulting a mechanic, they confirmed the gear's condition is satisfactory. Your assistance would be greatly appreciated. Mileage exceeded about 100,000km and I never changed the gear oil...
