What's the 2005 Cadillac DeVille power steering fluid type?

The power steering system in a 2005 Cadillac DeVille uses standard power steering fluid which can be purchased at any local auto parts store. Cadillac does not give a specific interval for changing the fluid so most users keep an eye on the color of the fluid in the reservoir and change it out once the color gets noticeably darker. The correct way to change it is to get under the car and disconnect the line going to the steering rack, allow all the fluid to drain and then reconnect and refill. Another method that works well is to use a large syringe or turkey baster to s**k all the fluid from the reservoir. Once it is empty, refill with fresh fluid. Repeat those stepS4 - 5 times and You will have a system full of fresh PS fluid.