[obermd]

Just to give you a comparison - I left my ECO MT running one morning last week for nearly 30 minutes while I chipped the ice off the windshield. Heater was on defrost and blower on 1. The digital temperature gauge still read below 100F when I got in to drive off. It was 12F outside. These engines just don't produce a lot of heat at idle.

 

[obermd]

mrod,

The thermostat is under the power train warranty. Also, double check your coolant level.