Can You Still Drive with Blackened Engine Oil?
2 Answers
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.
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.
