What type of oil do you use for a 1998 Buick century?

The recommended oil type for a 1998 Buick Century depends on the engine it has. There were a few different engines offered that year. You must check your owner's manual for the specific recommendation.

However, generally speaking, 1998 Buick Centuries likely used one of the following:

* 5W-30: This is a very common viscosity grade for this era of car and is a good starting point if you can't find your manual.

* 10W-30: Another common possibility, especially in warmer climates.

Crucially: The owner's manual will also specify the *type* of oil, such as conventional, synthetic blend, or full synthetic. The manual will tell you which is recommended or required for your specific engine. Using the incorrect type of oil can damage your engine.

To find the correct information:

1. Locate your owner's manual. This is the most important step.

2. Look for the section on engine oil. It will specify the recommended viscosity (like 5W-30 or 10W-30) and type of oil.

If you can't find your owner's manual, you can often find a digital version online by searching for "[your engine code] Buick Century owner's manual" (the engine code is usually found on a sticker under the hood). You can also contact a Buick dealership or a reputable auto parts store for assistance. Providing them with the VIN number will help them identify the correct oil for your specific vehicle.