What type of oil should be used for the Changan CS55?

[AliviaFitz]

Changan CS55 requires 5W30 engine oil, with a refill capacity of 3.5 liters. Engine oil, also known as motor oil or engine lubricant, is a substance enhanced with additives in base oil, primarily containing anti-wear additives, detergents, dispersants, and multi-grade viscosity index improvers. Engine oil is used for lubricating internal combustion engines, with its main functions being to reduce friction and wear on moving parts, as well as to remove sludge and varnish from the engine. The Changan CS55 is an SUV model equipped with a 1.5T VVT DOHC all-aluminum engine, delivering a maximum power of 115 kW and a maximum torque of 225 Nm. The Changan CS55 features a multi-link independent rear suspension and an enhanced MacPherson strut independent front suspension. The rear suspension allows for adjustment of toe and camber, while the front suspension is equipped with a high-strength anti-roll bar for smoother cornering response. The dimensions of the Changan CS55 are 4500mm in length, 1855mm in width, and 1690mm in height, with a wheelbase of 2650mm.

[DiKayden]

I've been driving a Changan CS55 for several years. When it comes to changing engine oil, you should follow the user manual's recommendation, which usually suggests 5W-30 full synthetic oil. I personally prefer Shell or Mobil brands, and they work well—smooth engine starts without harming the engine. If you're buying oil, check the viscosity label on the bottle and avoid choosing the wrong type. For example, 0W-20 might be too thin and provide insufficient lubrication, while 5W-40 could be too thick and increase fuel consumption. You should check the oil level every 5,000 to 8,000 kilometers and top it up if it's low, otherwise, engine overheating could cause serious issues. Regular maintenance also extends your car's lifespan and reduces repair costs. When I was new to this, I once used the wrong oil, and my car shook badly—later, I figured it out at the 4S shop. I recommend everyone read the manual to confirm the right oil before purchasing.

[EvanMarie]

My husband drives a Changan CS55, and I usually take care of its maintenance. For engine oil, I use the 5W-30 type, either semi-synthetic or fully synthetic, which costs around 100 yuan per bottle—not too expensive. I’ve compared brands online and found that the domestic Great Wall brand offers good value for money, while international brands like Castrol are slightly more expensive but more durable. The oil change interval is roughly every six months or 10,000 kilometers—don’t delay it too long, or the oil quality will degrade and contaminate the engine. When I change the oil in the garage, I first check that the dipstick level is in the middle. If it’s too low, it might indicate an oil leak that needs attention. Using the wrong oil can increase fuel consumption, costing more in the long run, so regular maintenance is the most cost-effective habit.