Worst coolant I've ever seen

I am thinking a Wrangler is as typical a hot chick vehicle as a Miata convertible is for manly studs. Not sure why Jeeps would be any more prone to coolant rust than others. Grand Cherokees even have the same Magnum V-8's as Mopars. The 4.0L six goes back to the 1950's and is well-proven. I use citric acid (ebay) in water to flush well, then totally dry and use Evans Waterless Coolant. No more rust worries or cooling maintenance.