
Car engine oil is typically equipped with an oil dipstick to check the oil level. The dipstick has clear upper and lower limits marked as H and L, where H represents the maximum oil level (upper limit) and L represents the minimum oil level (lower limit). When the oil level falls below the L mark, the vehicle's oil warning light will illuminate, alerting the owner that the engine oil is insufficient and needs to be replenished promptly. When checking the oil, besides observing the condition of the oil, it's also important to ensure the oil level is adequate. Both excessive and insufficient oil levels can cause engine abnormalities.

Checking the oil level is actually quite simple. As someone who drives frequently, I make it a regular habit. After parking and turning off the engine, wait a few minutes to let the oil drain back into the oil pan. Then, open the hood and locate the dipstick with a small ring—usually a yellow or orange handle. Pull it out, wipe off the old oil residue with a clean cloth or paper towel, then fully reinsert it. After pulling it out again, carefully observe the oil mark: it must be between the minimum and maximum marks to be sufficient. If it's below the minimum, promptly add the same type of oil, but be careful not to overfill, as excessive pressure can damage the engine. I check at least once a month, especially before long trips. Insufficient oil can cause excessive engine friction, leading to overheating, premature wear, and increased fuel consumption. Always choose the correct oil type as recommended in your vehicle's manual.

When I first learned to drive, I was always confused about how to check the engine oil. Later, I found out it only takes a few steps: after parking and turning off the engine, wait about ten minutes until the engine cools down. The dipstick in the engine compartment is easy to find—pull it out, wipe it clean, reinsert it, and then pull it out again to check. The oil level should be between the minimum and maximum marks. The first time I tried, I noticed the oil level was low, so I quickly added some oil to prevent wear. Be careful not to overfill; after adding oil, wait a bit and check the dipstick again to ensure the level is correct. Also, make sure the oil type matches your vehicle, or it won’t work effectively. I’ve made it a habit to check the oil when refueling at the gas station—it saves time, is convenient, and helps prevent small issues from becoming big problems.

I often work on my car, and checking the oil is a fundamental skill. Choose a flat spot to park; it's best when the engine is cold, but you can also do it shortly after turning off the engine. Pull out the dipstick, wipe it clean, reinsert it, and then pull it out again to check the oil level—it should be between the upper and lower marks. If it's below the lower mark, add an appropriate amount of oil, but don't overfill. Regular checks prevent engine wear; do it monthly or before an oil change. Oil serves as a lubricant, and insufficient oil increases friction between parts, shortening the engine's lifespan.


