What type of oil does the Cavalier use?

[BrandonFitz]

The original engine oil for the Cavalier is Shell, with the model number 0W20. For later maintenance, you can use oils from manufacturers such as Mobil or Great Wall. You can choose oils with specifications 5W30 or 0W30. The viscosity of the oil changes with temperature, so special attention is needed to its performance under both low and high temperatures. For example, in 5W-30, the first number indicates low-temperature fluidity. 5W means it can withstand low temperatures of -30°C. The smaller this number, the better the low-temperature fluidity, making cold starts smoother. The latter number represents the kinematic viscosity of the oil at 100°C. The higher the number, the better it maintains viscosity under high temperatures, which can also be understood as better lubrication performance under high-temperature conditions. The method for changing the oil in the Cavalier is as follows: Wait for the engine temperature to drop, allowing the oil to flow back into the oil pan; Use a wrench to loosen the oil drain plug and place an oil pan to catch the old oil until no more oil flows out. Start the engine and let it run for 30 seconds to allow the oil in the main oil passage to drain out; Use a special wrench to remove the oil filter; Apply oil to the seal of the new oil filter and tighten it clockwise by hand; Add new oil through the oil filler cap on the engine valve cover, usually filling about three-quarters of the bottle; Start the engine and let it run for 5 minutes, then check for any leaks around the oil drain plug and oil filter. If there are leaks, perform necessary repairs; After stopping the engine, pull out the oil dipstick and check that the engine oil level is within the standard range.

[DeJoy]

When I first got my Cavalier, I checked the owner's manual and found it recommended 5W-30 synthetic oil. I've been consistently using this oil for over three years, and the engine runs smoothly with good fuel efficiency. During hot summers, I check the oil level to prevent thinning and leaks; in winter, cold starts are quick without any noise issues. I change the oil every 7,500 kilometers, replacing the oil filter at the same time for hassle-free maintenance. Regular maintenance helps prevent carbon buildup and wear, extending the engine's life by at least five years. I also pay attention to using SN-grade oil for better environmental performance and reduced pollution. Since I often drive in congested urban areas, this viscosity maintains stability, avoiding unnecessary repair costs. In short, sticking to the manual's guidelines is the most reliable approach—don't risk major issues for minor savings.

[GemmaLee]

Having serviced the Chevrolet Cavalier for years at the repair shop, I commonly see owners using 5W-30 or 0W-20 synthetic oil. The manual is the gold standard—in hot southern climates, 10W-40 thicker oil may be chosen to prevent thinning, while in northern regions, 0W-grade oil ensures easier cold starts. The recommended oil change interval is 8,000 kilometers to prevent oil burning or excessive wear. Check if the oil is clean; replace it if the color darkens, and always pair it with a high-quality filter. Temperature fluctuations affect viscosity, so I advise customers to monitor it regularly to avoid costly repairs. Though synthetic oil is pricier upfront, its longevity and engine protection offer great value.

[ODante]

As an environmental advocate, my Chevrolet Cavalier uses 0W-20 low-viscosity synthetic oil, which is manual-approved for reducing fuel consumption and emissions. Smooth acceleration paired with this oil ensures high engine efficiency and quick response. Changing it every 5,000 kilometers maintains freshness, and combining this with other habits like timely maintenance reduces carbon footprint. Choosing eco-grade oil products is a small action with significant environmental protection meaning.