Just to be clear my Hybrid rarely has the ICE start first thing in the morning and I usually go a couple of blocks to a mile before the ICE comes on depending of SOC of HVB. I have been able to go 3 miles on flat ground at 35 mph. If you go above 35 mph the ICE comes on automatically when you first start the car to lube the Trans. Not a NRG for sure, but not bad.
Here is a thread that should help you now that winter is coming. rbort is right if you don't plan on using the ICE on your next trip, probably doesn't make sense to preheat the ICE. If you are going to use the ICE on trip it would be most efficient to use ICE first and use EV at the end of trip. I wouldn't heat up ICE more than 3 hours prior to leaving, this is in the CMAX OM. I want to clear up some confusion with using Block/oil pan heaters, they work the fastest when first started. The heat is lost more quickly as the differential becomes greater to outside temp and at about 3 hours the ICE temp stabilizes. Also I would use Grill Covers all year around and monitor Trans Fluid temp on ScanGaugeII. If TFT gets above 200*F I would remove lower cover.
Here is Link to improve Winter MPG's.
http://fordcmaxenerg...e-winter-mpgs/ BTW Grill Covers keep snow from getting in your grill and potentially damaging them.
Here is a Post I did earlier this year.
Last week I found out my ICE block heater was leaking and I think it has been doing it for sometime. I noticed two days in a row that the WT wasn't going up very much with the block heater plugged in and assumed that the plug had come undone. I pulled the cover off to find coolant dripping from block heater plug, the plastic piece in the center had started to allow coolant to get by it. It is such a big job to install a new block heater that I decided to screw in the old freeze. I bought instead a 250 watt oil pan heater pad off of eBay to go with the 125 watt Model 9 Wolverine oil pan heater pad. I plugged it in this morning for an hour and a half and only saw 25*F rise in temp over OT. My WT did go up very quickly so apparently the hot oil warmed up the ICE fast. Now I only have 375 Watts vs 575 Watts before, but it still seems to be working good enough.
Edited by ptjones, 11 May 2017 - 09:57 AM.
Edited by ptjones, 03 October 2017 - 07:48 AM.