Owner's Manual
Page 276
... control to pump more air into the engine than turbocharging because Buick emphasizes smooth, refined power. The power steering pump and reservoir are mounted on the rear (driver's side) of...Engine Oil 3 \ \ c \ . Since the supercharger is a pump and is driven from an engine accessory drive belt, increased pressure is displayed, check the dipstick level and add oil as during specific driving conditions. This air mixed withfuel creates increased engine power. Buick chose supercharging rather than it would normally use. Your Park Avenue Ultra has a 3800 Supercharged engine...
... control to pump more air into the engine than turbocharging because Buick emphasizes smooth, refined power. The power steering pump and reservoir are mounted on the rear (driver's side) of...Engine Oil 3 \ \ c \ . Since the supercharger is a pump and is driven from an engine accessory drive belt, increased pressure is displayed, check the dipstick level and add oil as during specific driving conditions. This air mixed withfuel creates increased engine power. Buick chose supercharging rather than it would normally use. Your Park Avenue Ultra has a 3800 Supercharged engine...