What type of engine oil is suitable for the Civic?

[DelJackson]

Civic uses 0W20 full synthetic engine oil. The meaning of 0W20 and the functions of engine oil are as follows: Meaning of 0W20: 0 represents the viscosity of the engine oil, with 0 being the smallest, indicating that the oil has lower viscosity at low temperatures and better fluidity. W stands for winter-grade engine oil. 20 is the oil viscosity, with 20 representing lower viscosity, suitable for low-temperature use. The higher the number, the higher the operating temperature it can handle. The choice of engine oil should be based on the operating temperature of the vehicle. Functions of engine oil: Engine oil lubricates and reduces friction in the engine, assists in cooling, provides sealing to prevent leaks, prevents rust and corrosion, and acts as a shock absorber. It is often referred to as the "blood" of a car. The engine is the heart of the car, containing many metal surfaces that move against each other at high speeds under harsh conditions, with operating temperatures reaching 400 to 600 degrees Celsius. In such extreme conditions, only qualified lubricating oil can reduce wear on engine components and extend their service life.

[DeLane]

I've been driving a Civic for many years and found that using the right engine oil is crucial. My car is a 2018 model, and the manual recommends using 0W-20 synthetic oil. I've tried several brands, and Mobil's AFE series works great—after switching, the engine runs super smoothly, starts quicker, and even saves a bit on fuel costs. If you use the wrong oil, like a higher viscosity such as 10W-40, cold starts in winter can be difficult, the engine noise increases, and over time, it accelerates wear. I change the oil every 5,000 to 8,000 kilometers—don't delay too long, as it can extend the engine's lifespan by at least a few years. When choosing oil, don't just look at the price; make sure it matches your car's model and year. Otherwise, engine repairs can be troublesome and costly.

[SanLilah]

When owners bring their Civics to the shop, I always remind them to check the owner's manual for the recommended viscosity first. Common choices are 0W-20 or 5W-30 synthetic oil, depending on the car's year. Newer models use the former for better fuel efficiency, while older ones use the latter for stability. The oil must be fully synthetic to protect the engine, prevent carbon buildup, and reduce wear. Also, use a good-quality oil filter—don't cheap out, or the oil will get dirty faster. Change the oil every 6,000-7,000 km. I've seen cases where oil degraded and clogged passages due to prolonged use, leading to costly repairs. The car isn't picky about brands; Shell or Castrol will do as long as they meet the specs.

[LaGabriela]

I just bought a Civic and asked my friends what engine oil to choose for simplicity. They all said using 0W-20 synthetic oil is hassle-free, and not to switch to other types randomly, as conventional mineral oil can harm engine efficiency. Higher viscosity isn't suitable for city driving, increasing fuel consumption and affecting acceleration. I'll buy Mobil or Toyota genuine oil, moderately priced and safe for changes. Remember to check the dipstick regularly; if it's too black, it's time for a change. Don't listen to those who say any oil will do—using the wrong one can cause minor issues like shaking or noise.

[LeAlivia]

When choosing engine oil for the Civic, I prioritize cost-effectiveness. Generally, 0W-20 synthetic oil is recommended. In terms of brands, the original Honda oil is more expensive but convenient, while fully synthetic oils from Castrol or Shell are cheaper with similar performance. As long as it has API SN or SP certification, there's no risk. Don't get the viscosity wrong—5W-30 can be used in hotter summers, but 0W-20 is better for most situations as it saves fuel costs. I stick to an oil change interval of 6,000-8,000 km, combined with air filter checks. Each oil change costs just a few dozen dollars, protecting the engine and avoiding costly repairs.