How many kilometers should Castrol fully synthetic engine oil be changed?
2 Answers
Castrol's fully synthetic engine oil generally needs to be changed every 10,000 kilometers. When changing the oil, you can use an oil test paper for observation. Take a small amount of oil from the dipstick and drop it on the oil test paper, then wait for a while until the oil fully diffuses. If the edge of the diffused oil ring indicates that the oil needs to be changed. Below is some information about engine oil: 1. Composition of engine oil: Engine oil is the lubricant used in engines, consisting of base oil and additives. 2. Density and functions of engine oil: The density of engine oil is approximately 0.91×10³ (kg/m³), and it serves to lubricate and reduce friction, assist in cooling, seal and prevent leaks, prevent rust and corrosion, and provide shock absorption and buffering for the engine.
I've been using Castrol fully synthetic oil for my car. With heavy city traffic, I change it roughly every 12,000 kilometers, but when driving on highways, I can stretch it to 15,000 kilometers before changing. Synthetic oil has strong resistance to aging and high temperatures. When I notice the oil quality deteriorates quickly in high temperatures, I check it earlier to avoid engine damage from prolonged use. I also monitor the oil color – if it turns black or has a burnt smell, it means there are too many contaminants, so I change it sooner. Never skimp on regular maintenance; safety comes first. I take my car to the workshop every six months to check the oil level and ensure proper lubrication.
