What kind of oil does the Buick LaCrosse generally use?

[LuciaLynn]

The suitable oil models for the Buick LaCrosse include 5W-30, 5W-40, and 0W-30. However, General Motors officially recommends 5W30 oil. The number after the W represents the oil's stability at high temperatures—the higher the number, the better the oil's high-temperature stability. The smaller the number before the W, the lower the oil's viscosity at low temperatures. Hazards of using incorrect oil viscosity: Oil with viscosity that is too high or too low is detrimental to the normal operation of the vehicle. It may either lead to component wear or result in excessive friction and higher fuel consumption. Viscosity standards: In general, 5W is sufficient for most regions in winter, while some northern areas are better off using 0W, which offers better low-temperature fluidity to adapt to local environmental temperatures. For high-temperature viscosity, lubricants with viscosity values of 30 or 40 are typically used. However, if the vehicle frequently drives in congested areas, is older, or is a heavy-duty vehicle used for long-distance transport, it may be appropriate to increase the oil viscosity, such as using 0W50 oil.