Q: What type of fluid is recommended for power steering systems in Buick Century and Regal, and what are the guidelines for checking and maintaining the power steering fluid level?
A: Use DEXRON® Automatic Transmission Fluid on 1975-76 vehicles. On 1977-87 models require GM power steering fluid or an equivalent specifically tested and approved for operation in GM power steering systems. When adding fluid or making a complete fluid change, always use GM P/N 1050017 power steering fluid or equivalent. Power steering fluid level should be checked at least once every 7,500 miles (12,000 km). To prevent possible overflowing, check the fluid level only when the fluid has warmed to operating temperature and the wheels are turned straight ahead. If the level is low, fill the pump reservoir until the fluid level measures full on the reservoir dipstick. Low fluid level usually produces a moaning sound as the wheels are turned (especially when standing still or parking) and increases steering wheel effort.