New guy here with a need for opinions. I have used syn. Mobil 1 or red line in my cars for 25 years but I am intrigued by what you guys say about GC. Some background on this particlar engine. It holds 13 quarts and has two oil coolers, they hold 3qts of the total, oil temp is always 160-200 degrees, redline on engine is 8500 rpm. Oil filter is a System 1. Mileage driven per year is about 3000 and I have always changed the oil once a year. I am not concerned as much about additive package longivity as I am about ware/shear protection. What do you guys think about GC for high rpm ware/shear protection vs using Mobil 1 or Redline?