How Many Kilometers to Change Synthetic Engine Oil?
2 Answers
Full synthetic engine oil should be replaced every 12 months. Below is relevant information about full synthetic engine oil: 1. Introduction: (1) To achieve better lubrication effects, humans have chemically synthesized various engine oils based on base oils, which are known as chemically synthesized engine oils. (2) Synthetic engine oil manufacturers produce different types of engine oils according to user requirements, and the composition of synthetic engine oils can be adjusted based on their intended use. 2. Definition: The official explanation of synthesis is: achieving the desired molecular form through chemical reactions under controlled conditions, a process called synthesis. The largest component of engine oil is the base oil, which can be classified into five categories based on specification grades. Among these five categories, Group I, II, and III base oils are referred to as mineral oils, while only Group IV and V base oils can be called synthetic oils. Group V base oils are polyol esters (POE), and Group IV base oils are polyalphaolefins (PAO). Therefore, the simplest understanding is that engine oils blended with Group IV and V base oils, along with mineral oils, can be referred to as full synthetic engine oils.
I've been driving for over a decade and always use synthetic oil. Based on experience, I recommend changing it every 8,000 to 12,000 kilometers, depending on the situation. If you frequently drive short distances in the city or encounter heavy traffic, the oil consumption increases, so you should shorten the interval to 8,000 kilometers for inspection and replacement. However, during steady highway driving, you can extend it to 12,000 kilometers. Don't forget that oil quality is also crucial—full synthetic oil is more durable and helps keep the engine clean. Every time I change the oil, I check the dashboard and the dipstick. If the oil turns black or its viscosity increases, it's time to address it early. Driving habits matter too—frequent acceleration and deceleration can shorten the oil's lifespan. Additionally, environmental factors like high temperatures or dusty areas require extra attention. Developing regular maintenance habits will make the engine more fuel-efficient and durable, avoiding major repair troubles.