How to Determine Whether the Engine Oil Has Been Changed?
2 Answers
Here are the methods to determine whether the engine oil has been changed: 1. Check the oil dipstick, which will indicate the oil level. In cars, the oil dipstick is a commonly used measuring tool to check the quantity of lubricating oil in the oil hole. 2. Since the dipstick insertion hole has a curved path, the dipstick must be able to deform when inserted and rebound when pulled out. Below is some related information about engine oil: 1. Lubrication: Engine oil forms a film between the piston and cylinder, thereby reducing friction. 2. Sealing: The oil film formed by the engine oil can prevent gas and oil leaks. 3. Cleaning: Engine oil can circulate and carry carbon deposits, sludge, and wear particles from engine parts back to the oil pan. 4. Cooling: Engine oil can circulate and dissipate some of the heat from the engine.
After driving for seven years, the most straightforward way to determine if the engine oil needs changing is by checking the dipstick. Pull it out, wipe it clean, reinsert it, then pull it out again to check the color and level: new oil looks like light honey—clear and bright—while used oil turns dark black or murky; if the oil level is below the minimum mark, it’s time to top up or change it. Don’t forget to note the maintenance date on the windshield or set a phone reminder—typically, oil should be changed every 5,000 to 10,000 kilometers. Delaying oil changes can wear down engine parts, increase noise and fuel consumption, and lead to costly repairs in severe cases. I check it every weekend while washing my car—it’s a simple habit that keeps my car running smoothly. New drivers can start with this routine to avoid major issues later.
