Anyway, fluid calls for Mopar® MOPAR® Hydraulic Power Steering Fluid meeting MS p/n AA Alternative is PENTOSIN CHF 11S (they even cross reference mopar AA in their spec sheet) I find Mopar fluid pretty difficult to source online The mopar parts retailers online have it for $1213 a quart but then add $15 shipping. Prestone ® Power Steering Fluid (PSF) delivers increased system life Designed with AntiWear System Protection, Prestone PSF protects against pump failure, squeals and clogs LEARN HOW TO USE THIS PRODUCT 50,000mile fluid life, formulated for use in all manufacturers;. Jeep Grand Cherokee WK2 3600 Pentastar V6 290hp;.