Anyone out there have experience with both the regular green coolant and the new Dexcool orange stuff? I had a 93 LT1 6 speed with the green and a 160 degree thermostat, and it ran a little under 180 with the AC off, and about 185 with the AC on. My 96 LT4 6 speed has the orange stuff, I put in a new 160 degree thermostat, and it runs over 190 with the AC on, and high 180's with it off... does the regular green coolant run better? Is there something else I should look at in my cooling system? This is the first car I have owned with the orange coolant so I am not familiar with it's cooling capabilties.