I have a 2003 Hyundai Santa Fe. I'm getting the power steering pump replaced for a third time in 3 months. The first two were A1 Cardone pumps and both were noisy and had issues. I finally broke down and ordered an OEM pump that my mechanic is going to install next week. But I'm curious: what fluid should he be using? I don't actually know what he used the first two times. Hyundai calls for something called "PSF-3" which no one ever has and most dealerships don't stock or use. I've read where ATF is fine in these systems. When I did a simple suck out/fill of the system over the years I used both store brand power steering fluid and then Maxlife PS fluid. So...I'm guessing that it isn't too picky. I just want to see what others are using with success in early 2000s Hyundais.
12 Highlander 3.5L, 84K, M1 EP 0W20
02 Tacoma 3.4L, 211K, Napa Syn 5W30
03 Santa Fe 2.7L, 212K, QSUD 5W30
02 Trailblazer 4.2L, 174K, Magnatec 5W30