How to Read the Oil Dipstick?
2 Answers
Reading the oil dipstick involves the following steps: 1. Unscrew the dipstick and wipe it clean with a clean soft cloth or tissue; 2. Reinsert the dipstick and then pull it out again. There are upper and lower limits marked at the end of the dipstick. Observe the part of the dipstick that is wetted by the engine oil; 3. If the oil level is between the upper and lower limits, it means the oil quantity is just right. If the dipstick does not reach the lower limit, it indicates insufficient oil. If the oil level is above the upper limit, it means too much oil has been added. The oil dipstick in a car is a commonly used measuring tool to check the lubricant level in the oil reservoir. Due to the curved path of the dipstick insertion hole, the dipstick must be able to deform when inserted and rebound to its original shape when pulled out.
First, park the car and turn off the engine, then wait for about 10 minutes to allow the oil to drain back into the oil pan. Park the car on level ground, open the hood, and locate the yellow or orange pull ring. Pull it out, wipe it clean with a tissue, then fully reinsert it and pull it out again. This time, carefully observe the end of the dipstick—there are usually two dots or notches as markers—the oil film should cover the area between the upper and lower marks. When the engine is cold, the optimal oil level is at about three-quarters of the upper mark. Too much oil can damage the seals, while too little will lead to insufficient engine lubrication. I usually check it twice a month and also observe the oil color—if it turns black, it’s time for a change. If the dipstick is completely covered in oil and hard to read, it’s likely overfilled. Beginners should avoid checking immediately after turning off the engine, as the oil is still circulating and may lead to incorrect readings.
