
Ciaz can use 0W20, 5W30, 10W30, or 10W40 engine oil, but 0W20 is recommended. Engine oil viscosity labeling and meaning: Regardless of the brand, engine oil uses the unified SAE viscosity labeling. Common engine oil viscosities include 5W-30, 10W-40, 15W-40, etc. The symbol W stands for winter. The smaller the number before W, the lower the low-temperature viscosity, the better the low-temperature fluidity, and the lower the applicable minimum temperature. The number after W represents the stability of the engine oil at high temperatures. The difference between full synthetic oil and semi-synthetic oil: Full synthetic oil has better high and low-temperature performance, a longer oil change interval, and is suitable for more severe vehicle conditions; semi-synthetic oil contains more mineral oil, has a higher pour point, and is more polluting to the environment.

I've been driving for many years, and the Ciaz is quite enjoyable to drive. Regarding oil selection, I recommend using synthetic oil, preferably with a viscosity grade of 5W-30, as this is what the car's manual recommends and it suits its engine particularly well. I've always used this, and I feel the engine runs smoother with less noise. Don't forget to check the oil standard, such as API SN grade, which protects the engine from wear. My experience is to change the oil every 5,000 kilometers or six months—don't delay, or carbon buildup may occur. In winter, lower viscosity oil makes for easier starts. As for brands, Mobil or Shell are both fine, but don't skimp and buy no-name brands. The small price difference is worth it to protect your beloved car. Developing this habit will surely extend your car's lifespan.

As someone who has driven many cars, I've found that engine oil has a huge impact on the engine. Ciaz owners are best off choosing 5W-30 synthetic oil, as this viscosity suits most climates in China. Using the wrong oil, such as a higher viscosity one, can increase fuel consumption and reduce power. I've seen cases where people used mineral oil indiscriminately, resulting in significantly increased engine noise. I recommend referring to the details in the vehicle manual and checking the markings on the oil cap. When buying oil, stick to reputable brands like Castrol and ensure API certification. Regular changes are a must, roughly every 8,000 kilometers. An extra tip: when changing the oil, check the oil filter as well—it filters out impurities and extends engine life. In short: use the right oil, and your car's condition will improve significantly.

When I first started driving, I bought a Ciaz. Choosing engine oil as a beginner isn’t really hard. Just go for 5W-30 synthetic oil—it’s affordable and reliable, don’t skimp by using mineral oil. Stick with big brands like BP or Great Wall, which are easy to buy online and often discounted. This viscosity works well in all seasons and ensures quick starts. Remember to change it every 5,000 km—it’s simple to do yourself, and replace the oil filter at the same time. Never wait until the oil light comes on; that’s bad for the car. A common mistake beginners make is using cheap oil to save money, only to damage the engine. Keeping it clean is crucial for the machine.

I believe choosing engine oil isn't just for the car, but also for the environment. The Ciaz is suitable for 5W-30 synthetic oil, whose low viscosity helps reduce fuel consumption and emissions. After switching to this oil, my fuel consumption dropped below 10 liters. Synthetic oil degrades more slowly, which is also better for the environment. When purchasing, check if the label has environmental certification. In daily maintenance, change the oil regularly to prevent pollution, every 5,000 kilometers or six months. This viscosity remains stable even in high environmental temperatures. I recommend combining it with fuel-efficient driving habits, such as using the air conditioning less, for a more environmentally friendly approach.

Having been into cars for so long, I emphasize high-performance protection. For the Ciaz, 5W-30 synthetic oil is the most suitable, especially full synthetic, as it enhances acceleration and engine protection. I've tested it, and the difference in power between regular oil and synthetic oil is noticeable. This viscosity ensures stability at high speeds and prevents overheating. Remember to change the oil every 5,000 kilometers and make sure to use genuine oil without any adulteration. During maintenance, check that the oil pressure is within the normal range. Long-term use of high-quality oil significantly reduces engine wear and makes driving much more enjoyable.


