Truck cranks fine when warm or plugged in. Went to start her last night after work (where I can not plug her in), and she cranked realllly sloww. Batteries tested good around three months ago and are less then 2 years old. I also tried jumping with a car on each battery and that didn't change it.

Not sure if it's the starter or what, any one got some ideas??

 

Normal - your oil is very thick at this time.

If your batteries werent good you'd be sitting there.

 

Run a good synthetic, your truck will crank faster.