Can I Still Drive When the Car Prompts for Immediate Oil Change?
3 Answers
When the car prompts for an immediate oil change, you can still drive, but you should replace the oil as soon as possible. The functions of engine oil include: 1. Reducing friction and high temperature: A sufficiently thick oil film separates the surfaces of relatively sliding parts, thereby reducing wear; 2. Sealing effect: Engine oil can form a sealing ring between the piston ring and the piston, reducing gas leakage and preventing external pollutants from entering; 3. Anti-rust effect: Lubricating oil can adhere to the surface of parts to prevent contact with water, air, acidic substances, and harmful gases; 4. Buffering effect: When the pressure at the engine cylinder port rises sharply, suddenly increasing the load on the piston, piston chips, connecting rod, and crankshaft bearings, this load is transmitted and lubricated through the bearings, cushioning the impact load.
Last time I saw this warning, I still gritted my teeth and drove to work. Three days later, the engine started making a rattling noise. The mechanic later said the engine oil had turned into black sludge, and the piston rings were severely worn, costing over 4,000 yuan to replace the parts. An oil warning indicates insufficient lubrication, and metal parts rubbing dry can generate high temperatures, potentially leading to cylinder scoring. Even if you can drive temporarily, never exceed 100 kilometers, and keep the speed below 60 km/h. Now I’ve developed the habit of checking the dipstick every month, and if it’s below the minimum level, I top it up with fresh oil as a temporary fix. By the way, some cars allow you to reset the maintenance reminder, but it’s best to first read the fault codes at the shop. Ignoring this warning long-term is absolutely not worth it—light cases may see a huge spike in fuel consumption, while severe cases could lead to engine failure.
I'm the kind of car owner who tries to save wherever possible, but you really can't ignore the oil warning light. Last week, my cousin kept driving long distances after the light came on, and halfway through, blue smoke started coming out. The repair shop said the old oil had too many impurities, which clogged the oil passages, and the turbocharger was directly damaged. Fresh oil is like blood supplying oxygen to the engine—once it ages, its cleaning and cooling capabilities plummet. I recommend checking the dipstick immediately: if the oil level is normal and the color is brownish-yellow, you might be able to make it another 50 km to a service point; if the oil is black or below the minimum line, you must stop right away. I always keep 1L of the same oil type in my car for emergencies. Also, be extra cautious in mountainous areas or hot weather, as heavy engine load accelerates wear.
