Refer to your owner's manual for correct PSF specifications. Please note some cars like Honda are very sensitive to PSF. Using the correct PSF will help prolong the power steering pump as well.

Edit Date: Feb. 18, 2022, 3:15 p.m.(ALL)[Common] Power steering fluid toppingPower steering system helps drivers steer the vehicle to turn the steering wheel easily without hassle using the hydraulic system…
Edit Date: April 11, 2022, 10:30 a.m.(All)[Honda] Flushing the power steering fluid (PSF)Jack up the front of the vehicle. Disconnect the return hose and redirect to transparent 10mm diameter hose to the drain bucket. …
Edit Date: Aug. 8, 2022, 8:38 a.m.(All)[Hyundai] 파워오일(PSF) 최소 및 최대 레벨사이 유지파워액 (PSF) 은 최소와 최대 사이에 유지하는것이 좋다. 파워오일과 파워액은 같은 의미이다. 일부 차량은 냉간시 와 열간시 최소 최대 사이 레벨을 체크하여 보충하는것이 좋다.