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What is the difference between 5w30 and 5w40 for the Qashqai?

1 Answers

VonBarrett

07/29/25 6:54pm

The difference between 5w30 and 5w40 for the Qashqai: 5w40 engine oil has higher viscosity than 5w30. The 'w' in the oil grade represents suitability for winter use. The number before 'w' indicates the oil's low-temperature flow performance, while the number after 'w' represents high-temperature viscosity - smaller numbers indicate lower viscosity, and larger numbers indicate higher viscosity. Engine oil, known as the 'blood' of a car, lubricates, cleans, cools, seals, and reduces friction in the engine. The viscosity standard follows SAE viscosity classification, distinguishing the suitable temperature range for lubricants. The performance standard mainly adopts API classification, differentiating oil performance and quality. The Qashqai is an urban SUV developed by Dongfeng Nissan, designed from the outset to combine multiple functions by incorporating characteristics of both SUVs and sedans. It optimizes and balances exterior design, interior, handling, and comfort to build core product strength, making it a representative model among best-selling SUVs.

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