How to Know When to Change Engine Oil?
1 Answers
Engine oil plays multiple roles such as lubricating and reducing friction, assisting in cooling, sealing against leaks, preventing rust and corrosion, and cushioning vibrations. Here are methods to determine if the oil needs changing: 1. Based on oil type: Engine oil degrades over time. 'Conventional' oil typically begins to oxidize after about 3 months of exposure to air, reducing its effectiveness. 2. Based on engine operation time and conditions: Operation time: If the engine remains inactive after adding oil, it's equivalent to exposing the oil to air, leading to deterioration. Operating conditions: There's a significant difference in oil consumption between idling and running at 6000 rpm in terms of engine friction and intensity. 3. Based on engine strength: High-performance engines withstand higher pressure, temperature, and shear force, leading to higher oil consumption and requiring higher-grade oil. Turbocharged engines are 1.3 to 1.5 times more intense than naturally aspirated engines, thus requiring more frequent oil changes. 4. Change by date: If the mileage doesn't reach the recommended change interval, time should be the criterion as oil deteriorates over time. 5. Change by mileage: Follow the manufacturer's recommendations (user manual), changing the oil when or before reaching the specified mileage.
