Can You Still Drive with Blackened Engine Oil?

[PaulRose]

If the engine oil turns black shortly after use, it is a normal phenomenon. However, if it has been used for a long time, the oil needs to be replaced. Failing to replace it in time can affect the engine. Here is more information about engine oil: 1. The quality of oil is not determined by its color. The functions of engine oil include cleaning, lubrication, cooling, and rust prevention. The blackening of engine oil is caused by the combined effects of carbon deposits, gum, impurities, and other substances resulting from gasoline combustion. 2. Engine oil, also known as motor lubricant, is referred to as the 'blood' of a car. It lubricates, cleans, cools, seals, and reduces friction in the engine. 3. The quality of automotive engine oil is indicated by the letter 'S', commonly including SA, SB, SC, SD, SE, SF, SG, SH, and SJ. The alphabetical order represents the development of oil quality and the advancement of additives.

[VanBraxton]

I've been driving for over a decade and have seen countless examples of engine oil turning black, which is actually a normal phenomenon. As the oil circulates through the engine, it continuously dissolves carbon deposits and metal debris, naturally causing the color to darken. As long as it's within the maintenance cycle and the oil dipstick shows normal levels, it usually doesn't affect driving. However, I recommend paying close attention to the engine sound and performance. If you notice sluggish acceleration or abnormal fuel consumption increases, it's advisable to change the oil early even before reaching the scheduled maintenance mileage. Here's a useful tip: Engine oil tends to turn darkest after long-distance driving because high temperatures accelerate its cleaning effect.

[McJulia]

Last time my car's engine oil turned black, I specifically consulted a friend at the repair shop. He said the cleaning function of engine oil absorbs impurities from the engine, and the darkening actually indicates it's doing its job. As long as regular maintenance is performed, there's no need to worry—after all, we drive cars without judging by the shade of the oil. However, remember to check the oil viscosity; if the fluidity noticeably worsens or you detect a burnt smell, it means the oil has degraded. Additionally, cars frequently driven on short trips tend to have oil that turns black faster due to increased wear during cold starts. In such cases, it's advisable to shorten the oil change interval.

[DeZane]

As an average car owner, it's common to feel uneasy when seeing the engine oil turn black. However, the lifespan of engine oil isn't determined by its color, but rather by usage time and mileage. I've checked the vehicle manual, and the manufacturer recommends an oil change every 5,000 kilometers or six months. Just keep an eye on the oil dipstick markings—as long as the oil level doesn't drop below the minimum line, it's fine. With the recent hot weather and frequent AC use, the engine is under heavier load, making it even more important to monitor the oil condition. After all, the engine is the heart of the car, and engine oil is like its blood—timely replacement is best for the vehicle.