What is the specific oil model for Citroen C5?

[VanReed]

The suitable oil model for Citroen C5 is 5W-30, but 5W-40 is also applicable. These two oil models, 5W-30 and 5W-40, have the same low-temperature fluidity but differ in high-temperature performance. The 5W-40 offers better high-temperature protection and sealing performance. However, due to its higher viscosity, it increases engine running resistance and fuel consumption. Additional information: 1. Owners can choose based on their needs and also consider factors such as driving environment and habits. If the owner drives aggressively, frequently in congested areas, or the vehicle is older, using the higher viscosity 5W-40 oil may be considered for better engine protection. 2. When selecting an oil brand, if longevity is a priority, Mobil oil is recommended; for cleaning performance, Shell oil is suggested; for strong oil film toughness, Castrol is advocated. For example, turbocharged engines, which are prone to carbon buildup at high speeds, may benefit from Shell oil's strong cleaning capabilities.