What is the recommended engine oil model for Corolla?
2 Answers
Official recommended engine oil models are 0W-20, 5W-20, 5W-30, and 10W-30. Below is relevant information about engine oil: 1. The number before "W" represents the flow viscosity under low-temperature conditions. The smaller this number, the better the low-temperature fluidity of the oil. The number after "W" indicates the viscosity of the oil at 100°C, with higher numbers indicating higher viscosity. Based on the oil grade properties, for example, 0W can be used in winter in regions like Northeast China, Inner Mongolia, and Xinjiang. In southern areas like Guangdong and Hainan, there is no special requirement for 0W, and 15W or 20W can be chosen. Numbers like 20, 30, and 40 are selected based on engine performance. Generally, 40 is chosen, while 30 can be used for some engines to prevent oil burning. For Corolla, 20 or 30 is sufficient. 2. If 10W-30 or higher viscosity engine oil is used in cold weather, the engine may be difficult to start. Therefore, it is recommended to use 0W-20, 5W-20, or 5W-30 engine oil. Using 0W-20 oil can maximize fuel savings.
My Corolla has been running for three years, and I've always used 0W-20 oil for oil changes, as recommended by Toyota. The main reason is its low viscosity, which helps save on fuel costs and protects the engine. Once, I tried using 5W-30, and the fuel consumption increased slightly. The mechanic at the repair shop said higher viscosity increases friction and isn't good for new cars. The manual clearly states the recommended type—don't try to save money by buying off-brand oil, as it can affect engine lifespan. Regular oil changes are also crucial; I usually do it every 5,000 kilometers. During oil changes, I also take the opportunity to check the tires and brakes. In short, using the right oil helps the car run longer and safer, especially during hot summers when low-viscosity oil cools faster, reducing the risk of overheating.
