Raleigh Auto Repair

Have you ever checked your engine oil only to find it looking darker than usual? Many car owners wonder whether this change in color indicates a need for an immediate oil change or if it's just a normal part of the oil's aging process. Let's separate fact from fiction and uncover the truth about discolored engine oil. What Causes Engine Oil to Change Color? 1. Normal Wear and Tear Over time, as your engine operates, the oil circulates through various components, picking up contaminants, dirt, and debris. This accumulation can cause the oil to darken in color, indicating that it's doing its job of cleaning and lubricating the engine. 2. Heat and Oxidation High temperatures within the engine can cause the oil to oxidize, leading to a change in color. Additionally, exposure to oxygen in the air can contribute to the oxidation process, further darkening the oil. 3. Contaminants Dust, dirt, metal particles, and other contaminants can mix with the oil, altering its col ... read more