What oil type do you need for your Pontiac Bonneville?

The type of oil needed for a Pontiac Bonneville depends entirely on the year and engine of the Bonneville. Pontiac Bonnevilles spanned many years and engine types, each with different oil specifications.

To determine the correct oil type, you need to:

1. Find your Bonneville's year and engine size. This information is usually found on your vehicle's registration or the driver's side dashboard.

2. Consult your owner's manual. The owner's manual will specify the exact type and weight of oil recommended by the manufacturer. This is the most reliable source.

3. Check the oil fill cap. Sometimes, the recommended oil type is printed on the oil fill cap.

Without knowing the year and engine of your Bonneville, I cannot give you a specific oil recommendation. Using the wrong oil can damage your engine.