Highly recommend Road Warrior Plus. It works great. I used it for a track day and one full coating of the front end only took around 1/3 a quart. At $40 a quart you cant beat it.You may consider this.
http://www.roadwarriorplus.com/default.asp
However, it doesn't work so well in combination with cold temps, in the rain, and when applied over Cquartz.