I found this radiator coolant additive on Mishimoto's website. I ordered a bottle to check the results and see if in fact such dramatic differences in engine tempss can be noticed.. This product claims up to 30 degree engine heat reduction. In my book key words are "Up to". Either way @ $20 a bottle and mishimoto being the respectable company they've become. I am willing to try this product. Will keep you all posted on my results.
Liquid Chill, Radiator Coolant Additive, by Mishimoto