See also:

Engine Oil Life System
When to Change Engine Oil This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engin ...

Under the hood
Unique with its all-four-cylinder powertrain, the Buick Regal relies on the excellent horsepower-per-liter ratio of the Ecotec engine family to deliver smart, on-demand performance that is also ve ...

High-Beam Headlamp/ Low-Beam Headlamp
1. Open the hood. See Hood . 2. For the driver side bulb, remove the windshield washer bottle filler neck by firmly pulling it straight up and out of the bottle. 3. Remove the battery cover by pul ...