Can Mineral Oil Last for One Year?
3 Answers
Mineral engine oil cannot last for a full year, but it may last up to a year if the car is not used for an extended period. There are three types of engine oils used in cars: mineral oil, semi-synthetic oil, and full-synthetic oil, with mineral oil having the shortest service life. Below is relevant information about mineral oil: 1. The base oil of mineral oil is refined from petroleum, with irregular molecular sizes and shapes, making it the lowest grade among engine oil classifications. Its performance characteristics and service life are inferior to those of semi-synthetic and full-synthetic oils. 2. If you have been using mineral oil for a long time, do not switch directly to full-synthetic oil, as this may backfire. Insufficient sealing could allow oil to enter the combustion chamber, leading to oil burning. Instead, use semi-synthetic oil for a period before transitioning to full-synthetic oil.
Can mineral oil last for a year? I often tinker with cars, but to be honest, mineral oil has a limited lifespan. Generally, mineral oil is recommended to be changed every six months or 5,000 to 8,000 kilometers because the oil oxidizes and thickens in high-temperature engines, accumulating impurities like dust and metal shavings. Over time, its lubricating effect diminishes, increasing the risk of engine wear. If you drive less, with mileage under 5,000 kilometers, and the road conditions are smooth without congestion, mineral oil might last a year. But be sure to check the dipstick monthly to see if the oil is transparent and clear, with moderate viscosity and no clumping. Synthetic oil has better durability, lasting up to a year or 10,000 kilometers. Mineral oil is cheaper, but don't skimp on this small expense and risk major repairs. Also, pay attention to the condition of the oil filter during regular maintenance, as it affects the oil's lifespan.
I've been driving for over twenty years and have used mineral oil several times. Once, I was too busy with work and forgot to change the oil, ending up using mineral oil for a whole year before replacing it. As a result, the engine noise increased upon startup, and the oil turned as black as ink. The mechanic said sludge was starting to build up, nearly damaging internal parts. Can mineral oil last a year? Theoretically yes, but it's risky, especially in urban conditions with frequent starts and stops, and poor air quality where the oil gets dirty quickly. My experience is that mineral oil should be changed at most every eight months, especially for older cars or those frequently driven on highways. An oil change costs just a few hundred bucks—it's a bargain compared to preventing engine problems. Don't slack on car maintenance; regularly check oil levels and ensure there's no burnt smell for safety.
