Should the City use 5w30 or 5w40 engine oil?

1 Answers
McLouis
07/30/25 5:39am
Both 5w30 and 5w40 engine oils are suitable for the City. Naturally aspirated engines have lower requirements for oil performance, so mineral oil or semi-synthetic oil can be used. If the consumer's budget allows, fully synthetic oil can be adopted. Compared to naturally aspirated engines, turbocharged engines have a more compact structure and more complex operating conditions, requiring higher oil performance and better-flowing lubricants, so fully synthetic oil is recommended. Engine oil brand selection: 1. If prioritizing oil longevity, Mobil oil can be chosen. 2. If emphasizing the oil's engine cleaning capability, Shell oil can be used. 3. For oil with strong film toughness, Castrol can be selected.
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