What Types of Cars Are Suitable for Semi-Synthetic Engine Oil?
2 Answers
Semi-synthetic engine oil is suitable for cars equipped with naturally aspirated engines. The classifications of engine oil include: 1. Conventional mineral oil; 2. Semi-synthetic oil; 3. Full synthetic oil. The functions of engine oil are: 1. To separate the surfaces of relatively sliding parts between the piston and cylinder, as well as between the main shaft and bearing bush, reducing component wear; 2. To carry heat back to the oil tank and then dissipate it into the air, assisting the radiator in cooling the engine. The method for changing engine oil is: 1. Lift the car, remove the protective plate, and place a container of about 10 liters under the oil drain plug; 2. Unscrew the oil drain plug, use an air gun to blow into the oil filler port for two minutes, then tighten the drain plug after draining and wipe it with a tissue to check for oil leaks; 3. Reinstall the protective plate, lower the car, and use a funnel to add oil through the filler port.
I've been driving a Corolla for seven years and always use semi-synthetic oil. This type of oil is particularly suitable for ordinary family cars like ours, especially those with naturally aspirated engines. Many Japanese cars use 0W-20 grade oil, and semi-synthetic is completely sufficient. I commute over a thousand kilometers every month, and semi-synthetic provides better protection than mineral oil while being one-third cheaper than full synthetic. Last time during maintenance, the mechanic said that for someone like me who often drives on highways, the oxidation resistance of semi-synthetic is sufficient. Even hybrid cars with start-stop functions can use it, as long as you don't pursue extreme performance too much. Remember to choose reputable brands; the one I use costs just over 200 yuan per barrel during promotions, which is quite cost-effective.
