GPSman1 (John) is correct in that I had incorrectly referred CHT with CAT. You don't have to monitor CAT as it rapidly heats up. With John's post I now can monitor CHT to better monitor my vehicle's ability to get into EV.

2005 AWD Escape Hybrid
Best Interstate tank trip MPG 39.02 (scangauge II) for 402 miles on I-70, 10.3 gallons used over mostly flat terrain. Aug. 2007

Best Interstate tank trip E30 MPG 34.6 for 271 miles along I-80 in Indiana and Ohio. May 2008

Best multiple road tank trip E30 MPG 36.2 for 202 miles in Southwestern Pa. July 2008.