[Blue-S]

I just couldn't resist gathering more ECT data over the weekend:

80 mph in the cluster, 96 deg F ambient temp in the cluster
HVAC = 93 deg C (199 deg F), Scan Tool ECT = 196 deg F

The highest ECT I saw in 40 miles of driving was 201 deg F on the scan tool, and that was at 75mph in a 98 deg F ambient temp, while climbing a shallow grade. Still, I will probably install a 160 deg F thermostat the next time I have an excuse to open the cooling system. I'm just not eager to replace a year-old stock thermostat right now...