Just bought a diehard platinum 930CCA $220 installed, My truck has never started with this kind of enthusiasm! '05 73K and didn't start with the -20F we had. It's sits a lot as I have a company vehicle. Just realized I have a factory installed block heater so that's plugged in and thinking of a battery tender.

 

Had two '07s with around 10k that crapped out this winter. Know another guy with an '06 that has had the same problem. Ford must've gotten ahold of one horrible batch of Motorcraft batteries...