Is it better to use 5w40 or 5w30 for h6?

1 Answers
DanielFitz
07/30/25 5:30am
According to the maintenance manual, h6 should use 5w-40. The main function of engine oil is to reduce friction and wear of moving parts and remove sludge and paint in the engine. Every car comes standard with a maintenance manual. Refer to the maintenance manual in the car. New cars usually choose engine oil with slightly lower viscosity, so add 5w-30. As the car ages, gradually choose engine oil with slightly higher viscosity, because older car engines will wear more severely, so choose engine oil with relatively higher viscosity, 5w-40. Precautions for using engine oil are as follows: Do not lack engine oil: Engine oil is extremely important for the movement of the engine because it shoulders the two major functions of lubrication and heat dissipation. Therefore, never lack engine oil for the engine at any time. The oil level should be slightly lower than the mark on the oil dipstick: The oil level should be slightly lower than the mark on the oil dipstick, and do not overfill. Excessive engine oil will not only increase the rotation resistance of the crankshaft but also reduce the output power of the engine. Even worse, the excessive engine oil may enter the combustion chamber and participate in combustion, causing the vehicle to burn engine oil, emit blue smoke, and increase fuel consumption. It is best not to change the engine oil model at will, because the engine oil specified by the manufacturer is precisely set based on various parameters of this model. It can minimize wear, maximize lifespan, minimize fuel consumption, improve handling, and ensure the highest safety factor. In addition, using any other engine oil will cause certain harm to the car. The oil change cycle of the car: refers to the driving mileage or time between every two lubricant changes. Generally, the vehicle manual recommends 5000 kilometers or 7500 kilometers, or calculated by time, such as 6 months.
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