What are the precautions for changing engine oil?
2 Answers
Precautions for changing engine oil are: 1. Perform the operation when the engine is warm to ensure the old oil is drained as thoroughly as possible; 2. Add new oil and ensure the quantity is appropriate; 3. After adding oil, start the engine to check for any oil leaks, then run the engine for 3 minutes to confirm the oil level reaches the normal mark. The method for changing engine oil is: 1. Lift the car, remove the undercover, and place a container under the oil drain plug; 2. Unscrew the oil drain plug, use an air gun to blow into the oil filler opening for two minutes, then tighten the drain plug and wipe it with a tissue to check for leaks; 3. Reinstall the undercover, lower the car, and add oil through the filler opening.
When changing engine oil, I believe the core principles are safety and precision. As a car owner with years of experience, I've encountered minor accidents, so I always remember to warm up the engine for a few minutes before shutting it off—this helps the oil drain faster. When lifting the vehicle, stability is crucial; use a jack to support the front securely to prevent sudden slips. I always place jack stands as an extra precaution. Wear thick gloves during the process, as used oil can be hot and easily burn your skin. Carefully loosen the drain plug and use a dedicated oil pan to catch the old oil, avoiding ground contamination. The oil filter should also be replaced—don’t cut corners by reusing it. Before adding new oil, check the type and use the viscosity recommended in the manual, such as 5W-30. Measure the oil precisely with a measuring cup and avoid exceeding the MAX line, as overfilling can cause engine vibration. Finally, start the car for a few minutes, check the dipstick to ensure the oil level is midway, and confirm there are no leaks. Don’t dispose of used oil improperly—take it to a recycling center. Change the oil every 5,000 to 8,000 miles to maintain proper engine lubrication and extend its lifespan. DIY oil changes can save money, but safety always comes first.
