What type of engine oil should be used for the Emgrand EC7?
2 Answers
Engine oil can use Aojixing SL5w-40, which has the right viscosity. User Manual: The Emgrand EC7 user manual specifies the use of SJ grade or higher engine oil. You can purchase SJ/SL/SM grade oils. In summer, use 5w-40 viscosity, and in winter, 5w-30 can be used. Gasoline engine oil cannot be used for diesel engines: Do not use specialized gasoline engine oil as a substitute for diesel engine oil to avoid accelerating wear on the diesel engine. Gasoline engine oil and diesel engine oil should, in principle, be used separately. Only when the car manufacturer provides substitution instructions or the oil is labeled as suitable for both gasoline and diesel engines can it be substituted or used within the specified grade range. Engine oil viscosity should be as low as possible: Under the premise of ensuring reliable lubrication for the engine, the viscosity of the engine oil should be as low as possible. High-viscosity oils are only suitable for severely worn engines or for use in southern summers. Choosing excessively high-viscosity oil will increase the engine's operating resistance, leading to higher fuel consumption. On the other hand, selecting oil with too low viscosity may result in insufficient oil pressure, inadequate lubrication film strength, and poor sealing.
As a long-time owner of a Geely Emgrand EC7, I've consistently used SAE 5W-30 full synthetic engine oil. This oil grade is perfectly suited for the engines in our common vehicle models. It remains fluid during cold northern winters for smooth starts and provides excellent high-temperature protection against engine wear in summer. Choosing engine oil isn't arbitrary - it depends on the engine type. The Emgrand EC7 typically comes with 1.5L or 1.8L engines, and 5W-30 meets most driving conditions. I personally check the oil level every 5,000 km to ensure proper quantity and quality. While semi-synthetic oil can work if you're budget-conscious, full synthetic offers better durability. Always consult your owner's manual before changing oil - using incorrect specifications may cause malfunctions. Pay special attention to maintenance after long trips - safety comes first.
