Hi

I have recently purchased a 2006HCH and to help with warmups I had a block heater installed total cost about $150 . I put this on a timer so that it comes on a hour before I start in the morning . With the temp in the hi40s after 2 blocks im up to 3 bars on the temp gauge and my mpg for my commute of 20miles has improved by 2mpg. The auto stop feature is alsao activating sooner. The heater draws 420 watts fo a hour at .10c a kw comes out to .042cents a day. You also have to plug and unplug it every day. Just thought I would mention this the sooner it warms up the better.