PSF for 2007 Hyudai sonata 2.4L

Joined
Aug 26, 2009
Messages
791
Location
NH
Greetings. I lost the manual to wife's 2007 Sonata. Have been changing all the fluids and then realized we've never touched the power steering fluid before.
At 170K miles it's a very nasty color. Anyhow I've been googling with mixed results. Some say it takes PSF3 others say PSF4. Others say any ATF will suffice.
I have several leftover quarts of ATF+4 from my old Dodge Ram. I also have Maxlife multi-import ATF from during her transmission. Any advice appreciated.
 
Yeah, from what I've been googling PSF3 and PSF4 are kia/hyundai proprietary brands. Not sure when they changed over to PSF4 but heard
it had to do with reducing power steering squeaking in colder weather.
 
Manual says to use psf4
[Linked Image]
 
I just use the Prestone Asian stuff I can pick up locally. About the same mileage, but I d/f every oil change because I don't think much of the total volume in the system is actually in the reservoir.
 
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