JAKE, my 14 yr old Jeep, doesn't have all the diagnostics to run through upon start up. I start it and then drive conservatively until the temp. gauge moves some, that is what the manual states.
With ERNIE (2012 - 2nd Gen.) you can hear the engine running through the start up diagnostics and you can hear the oil lubing the valves. After it has calmed down some I drive it conservatively for a few minutes before getting spirited. I'm waiting to install the temp. gauge... hopefully in the Spring.
Let's remember... starting your car and leaving it to warm up is illegal in most jurisdictions. I know it is the law in MD and DC, I'm not sure about across the Potomac. Also, if any thing happens (theft, someone injured from it rolling, etc.) your insurance will not cover you for an unattended vehicle. Sorry for the buzz kill. :embarassed: