The 2016 Buick LaCrosse uses Dexos1 Gen 2 certified motor oil, typically 5W-30 full synthetic for the 3.6L V6 engine commonly found in this model.
In practice, GM's owner manual specifies Dexos1 Gen 2 oil with a viscosity of 5W-30 for the LaCrosse’s 3.6L V6, though certain configurations or climate conditions may warrant adjustments. Always verify the specification on the oil bottle and in the manual or with a dealer.
Oil specification and certification
Dexos1 Gen 2 is GM's modern standard for gasoline engines, designed to meet the lubrication needs of modern emissions systems and engine designs. For most 2016 LaCrosse models equipped with the 3.6L V6, the recommended viscosity is 5W-30, and the oil should meet Dexos1 Gen 2 certification. Using an oil that does not carry Dexos1 Gen 2 can affect warranty coverage and engine protection.
If you have a different engine configuration or live in extreme climates, consult the owner's manual or a Buick dealer to confirm the exact grade and certification required for your vehicle.
How to choose the right oil
To ensure you meet GM specifications, look for the following criteria in your oil choice:
- Dexos1 Gen 2 certification on the bottle label.
- Viscosity: 5W-30 is the standard recommendation for the 3.6L V6 in the 2016 LaCrosse.
- Oil type: synthetic or synthetic-blend that meets Dexos1 Gen 2 certification.
- Brand clarity: choose a reputable brand that clearly states Dexos1 Gen 2 compliance on the packaging.
In short, select a Dexos1 Gen 2 oil with 5W-30 viscosity (unless your manual specifies a different grade) and follow the vehicle’s recommended maintenance interval for oil changes.
Summary
For the 2016 Buick LaCrosse, the typical requirement is Dexos1 Gen 2 certified oil with a 5W-30 viscosity, usually a synthetic or synthetic-blend. Always verify the exact specification in your owner’s manual or with a Buick dealer, as engine options and climate can influence the precise grade.