Personally, I don't want any higher temps., 50/50 or a little weaker in the summer, and 50/50 in the winter, along w/ alum. protector of some sort.
As a sidenote, I drove a 2002 dodge quadcab, for 15 yrs. w/ the same antifreeze in it, never had any problems w/ that truck, except front wheel bearings, and had to put a cheap ebay radiator in it because the plastic to alum. seam started leaking. Always had to add a little for winter tho.
