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Is 40 or 30 engine oil better for Haval F7?

1 Answers

StMaddox

07/29/25 9:37pm

Haval F7 is better with 40 engine oil, as 40 oil is more viscous than 30 oil. Introduction to engine oil: Engine oil consists of base oil and additives. The base oil is the main component of lubricating oil, determining its basic properties. Additives can compensate for and improve the deficiencies in the performance of the base oil, giving it certain new properties, making them an important part of lubricating oil. Selection of engine oil viscosity: It should meet both low-temperature startability and high-temperature lubricity. Choose the viscosity grade according to the region, season, and temperature, and try to use multi-grade oil. In winter in extremely cold areas, engine oil with OW, 5W, or OW/20 or 5W/20 multi-grade oil should be selected. In summer in hot areas, 40 engine oil or 20W/40 engine oil should be used.

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