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If you need advice on what type of power steering fluid to use for your 2006 Cadillac DTS, I can provide assistance. The recommended power steering fluid for the DTS is GM Power Steering Fluid, which has a part number of 89021184. Alternatives to consider are Prestone Power Steering Fluid or Lubegard Synthetic Power Steering Fluid. The function of power steering fluid in your vehicle is to facilitate smooth steering as you turn your wheels left or right. If you experience difficulty steering, it could be due to a system leak or low fluid level in the reservoir. I suggest monitoring the fluid level periodically to prevent it from becoming too low.
The recommended power steering fluid for a 2006 Cadillac DTS is ATF+4.