Here is an excellent writeup by Hybridbear, member here and he's a Moderator at the Fordfusionhybridforum.com, a "sister" site to here.
What's it all about?
Our C-Maxs and the Ford Fusion hybrid share the same hybrid platform. There is no difference. As such, both platforms have to "warm up" the internal combustion engines (ICE) as we start driving the FFH or our CMaxs in the cold morning. It is here that A LOT of gas may be burnt to warm the ICE.
Hybridbear's thread basically list out the stages of the warmup process and walks you through it, including notes on the temperatures which allow the next stage to be initiated.
Initially he had posted the link on another thread here as part of a different discussion. However, I felt it belonged better here with the Tips & Tricks section, especially now with the colder weather and our MPGs are taking a pounding due to the warmup cycle.
Click on the link to view the post. If you want to respond to the post, you'll have to sign up to be a member there.
Thanks to Hybridbear for a STELLAR writeup and update.
PS We won't hold it against you for not driving a CMax although you do have an Energi so you're fam then...