Tighed1,
I too installed the PTE thermostat. My coolant temps dropped from mid guage (maybe a needles worth higher on really hot days) to 1 full tick mark below half. it will rise some if the AC is on high and it is 85+ outside - maybe half way between the half mark and the tick mark below it.
My drive is mostly highway at 55-70mph. in stop/go driving it will approach the half way mark, but as soon as I start rolling, it drops right down. It NEVER did that before.

One thing I did do - I copied Woody and did the full grill mod. I removed all of the angled bits from the slats on the grill. That has helped a lot. It is a straight shot to the radiator now.

It was 64 this morning and the guage was reading a needles worth below the second tick mark (I think the half way point is the 3rd tick mark). I need to get a pic.

I am thinking that when it gets really cold outside I am going to have to block a portion of the radiator to keep from throwing a code! I can say the car is much more responsive now. it had turned into a pig before I installed the PTE thermostat. It was always just backing hot.

Did you do the grill mod or just the thermostat?

Cheers,
KrzyFast