How to Know When to Change Car Engine Oil?
2 Answers
Methods to determine when to change car engine oil: 1. Smell Test: Pull out the dipstick and smell it. If there is a strong sour odor, it indicates the oil has deteriorated and should be replaced promptly. 2. Finger Rub Test: Take a small amount of used oil between your fingers and rub it repeatedly. Normal oil should feel frictionless and lubricating. If it feels less viscous, has particulate impurities, or even feels gritty, it should be changed. Engine oil, also known as motor lubricant, serves multiple functions including lubrication and wear reduction, auxiliary cooling, sealing against leaks, rust and corrosion prevention, and shock absorption. Types of engine oil include mineral oil, semi-synthetic oil, and full synthetic oil.
When I first started driving, I was quite clueless too, but later I figured out a few tricks to determine when to change the engine oil. Remember, regular replacement is key—I make it a habit to check every 5,000 kilometers or every six months, no matter how the car is driven. Pull out the dipstick, wipe it clean, reinsert it, and then pull it out again to check the color. If it’s black and sticky, it means there’s too much contamination and it’s time for a change. If the engine sounds louder or fuel consumption suddenly increases, those are also signs—don’t push it, or you risk damaging parts. If you drive a lot on highways, the oil depletes faster, so it’s best to check 1,000–2,000 kilometers earlier. Safety comes first—don’t delay to save money. If you spot an issue, head to the repair shop right away. Once you get into the habit, it becomes second nature. Now I even change the oil myself—it’s hassle-free and saves money.
