Unless I'm mistaken, ATF is probably the correct fluid for your car. CHF was only specced on cars with active steering (and other gubbins I can't remember right now) running off the PS pump. For cars with only standard PS, ATF is the correct fluid. Filling with CHF on an ATF system won't do any harm, and vice-versa; CHF just maintains correct operating properties under harsher conditions, as far as I know.
Willing to be proven wrong, of course.
