I decided to edit this to say I don't recommend this because of failing Trans problems and heating could make the Trans run a little hotter. Maybe 5*F hotter, not much, but no reason to make it worse.
Well I went the next step to improving short trip mileage by installing Transmission Heater Pad, a Wolverine Model 9 Pan Heater, 125Watts/120vac. I needed to file down ridges some on the bottom of Trans to make it easier for Heating Pad to stick to Trans. I plugged in Block, Oil Pan and Trans Heater pads for over two hours this morning getting TFT145*F, WT135*F and IT95*F with outside temp in the garage at 60*F . With all Grill Covers on temps dropped about 10*F for the first minute with outside temps 40*F and 2.4mi. trip, TFT145*F, WT182*F and IT64*F when I got to work.
Edited by ptjones, 20 September 2016 - 03:11 PM.