Where is the fuel filter located on a 1989 Buick Regal 3.1?

On a 1989 Buick Regal with the 3.1L V6 engine, the fuel filter is typically located on the frame rail, near the passenger side of the fuel tank. It's often somewhat hidden and may require some maneuvering to access. You'll likely need to look underneath the vehicle to find it.

However, it's not always in the exact same spot due to variations in trim level and specific model year details. A repair manual for your specific year and model Buick Regal would be the best resource for precise location. A visual inspection underneath the car is recommended to locate the filter.