1986 gl turbo coupe. Need to completely refill the power steering. Ive heard John Deere Hy Gard Low Viscosity. Theres this Shell Daxon(somthing like this) low viscosity that ive heard is a replica that would be easier to find. Ive also heard ATF? What do you guys use?

Use Dextron ATF, It sould also say that on the cap of the PS pump

thankya I figured it should be somewhere but my little sticker fell off the cap. I can see residue of where it used to be.