Is it necessary to change the engine oil every 6 months?

[StTucker]

It is not always necessary to change the engine oil every 6 months. This depends on the type of oil used in the vehicle, as well as the driver's driving habits and usage environment. Engine oil is often referred to as the 'lifeblood' of the engine, serving functions such as lubrication, cleaning, sealing, heat dissipation, buffering, and rust prevention. Without engine oil, the engine cannot operate properly. In terms of time, 6 months is typically the theoretical replacement interval for mineral oil. If the engine uses mineral oil, even if the engine hasn't been running for six months, the oil should still be changed because mineral oil oxidizes and deteriorates over six months, losing much of its intended performance. For semi-synthetic or full-synthetic oils, although oxidation and deterioration may occur within six months, they can generally continue to be used.