Does Engine Oil Decrease with Use?
2 Answers
Engine oil does decrease with use, for the following reasons: 1. Normal lubrication loss: During each lubrication cycle, a small amount of oil in the gaps will enter the combustion chamber, leading to a gradual decrease in oil volume. 2. Oil evaporation: Due to heat, engine oil can evaporate, resulting in a reduction over time. 3. Sealing issues: Oil may leak through gaps, causing it to diminish with use.
As an ordinary car owner with years of driving experience, my experience tells me that engine oil does gradually decrease over time. When driving, the engine operates at high temperatures, causing some oil to evaporate, especially in older car models. If the engine seals age, oil may also burn into the combustion chamber, leading to increased consumption. Before each maintenance cycle ends, I always check the dipstick and find the oil level has dropped by about 10%, so I need to top it up in time. This is not a major issue, but neglecting it can shorten the engine's lifespan. Develop the habit of checking monthly—pull out the dipstick in the engine-off state, wipe it clean, reinsert it, and ensure the level is between the marks. Newer cars may consume less, but regardless of the vehicle, regular oil changes and maintenance are key. Remember to choose the right viscosity grade of oil to reduce evaporation.
