What's the Acura MDX 2004 power steering fluid type?

You should only use Honda power steering fluid in the 2004 Acura MDX. You can use other steering fluids in an emergency, but You should have the system flushed and replaced with Honda PSF. When checking on Your power steering fluid level, look at the side of the reservoir and make sure the fluid level is between the upper and lower marks. If the fluid level is too low, and just enough to bring it two within the normal range. Do not put too much in that it goes above the upper level. If the power steering fluid is low the pump will let You know fairly quickly. It will start to squeal when You turn the wheel.