Should the Volkswagen Lamando use 5W30 or 40 oil?
1 Answers
The Volkswagen Lamando uses 5W-40 engine oil. Main differences: 1. Viscosity: 5W-40 has slightly higher viscosity than 5W-30, meaning 40-grade oil consumes slightly more fuel. 2. Low-temperature performance: Under cold conditions, although both are suitable for the same ambient temperatures, 5W-30 has significantly better viscosity than 5W-40, indicating superior low-temperature performance. For winter use, 5W-30 is preferable as it provides better cold-start protection than 5W-40. 3. Stability: Under high-temperature conditions, 5W-40 offers better stability. If the vehicle operates extensively in high temperatures, 5W-40 is the optimal choice. However, even in summer, 5W-30's high-temperature characteristics are sufficient. 4. Sealing properties: Due to varying sealing needs, new cars and premium vehicles with good cylinder sealing typically use 5W-30. Since lower-grade cars and older vehicles experience more severe engine cylinder wear, requiring oil to assist with sealing, it's best to choose 5W-40 or even 5W-50.