Why Is There a Lack of Engine Oil Even Without Burning Oil?
2 Answers
The reasons for a lack of engine oil without burning oil: 1. External leakage leading to oil loss: Over 90% of vehicle oil leaks are caused by aging rubber seals. Over time, affected by temperature fluctuations, rubber seals lose their plasticizers. Seals that lose plasticizers shrink and harden, losing their sealing properties. Traditional repair methods only involve replacing the seals, which is time-consuming, labor-intensive, and costly. 2. Internal leakage, participating in combustion. Additional information: Causes of burning oil: 1. Carbon deposits: Due to the difference in fuel quality between domestic and international standards, a large amount of carbon deposits can easily form in the combustion chamber during engine operation. Carbon deposits are the root cause of various engine problems. 2. Piston rings unable to seal completely: Carbon deposits accumulate in the piston grooves, causing the piston rings to stick together. This prevents the piston rings from sealing completely, and the 'stuck' piston rings significantly reduce their oil-scraping and sealing capabilities. Additionally, sludge can clog the oil return holes, preventing normal oil return and leading to increased oil consumption.
The phenomenon of oil shortage without noticeable oil burning, I suspect it might be due to oil leakage. As someone who frequently works on cars, common leak points are the oil pan gasket or the valve cover seal aging—these small holes are hard to notice but can allow oil to slowly seep to the bottom of the car. The oil cooler or loose oil line connections are also hidden culprits, especially on bumpy roads. Misreading the dipstick can also cause misunderstandings, as sludge buildup can make measurements inaccurate. I recommend first checking the ground for any oil stains, using a new dipstick for inspection, and ideally performing monthly routine monitoring. If a leak is found, timely tightening or replacing the seals can prevent major repairs. These details may seem minor, but they affect engine lifespan and driving safety.
